<PAGE>





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                    PREFERRED SECURITIES GUARANTEE AGREEMENT

                              CCCISG CAPITAL TRUST

                           DATED AS OF _________, 200_


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                                             TABLE OF CONTENTS

<TABLE>
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                                                                                                      Page
                                                                                                      ----
<S>                                                                                                   <C>
ARTICLE I
         DEFINITIONS AND INTERPRETATIONS.................................................................2

ARTICLE II
         TRUST INDENTURE ACT.............................................................................6
         SECTION 2.1    TRUST INDENTURE ACT: APPLICATION.................................................6
         SECTION 2.2    LIST OF HOLDERS OF SECURITIES....................................................6
         SECTION 2.3    REPORTS BY THE PREFERRED SECURITIES GUARANTEE TRUSTEE............................6
         SECTION 2.4    PERIODIC REPORTS TO PREFERRED SECURITIES GUARANTEE TRUSTEE.......................7
         SECTION 2.5    EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT.................................7
         SECTION 2.6    EVENTS OF DEFAULT; WAIVER........................................................7
         SECTION 2.7    EVENT OF DEFAULT; NOTICE.........................................................7
         SECTION 2.8    CONFLICTING INTERESTS............................................................8

ARTICLE III
         POWERS, DUTIES AND RIGHTS OF
         PREFERRED SECURITIES GUARANTEE TRUSTEE..........................................................8
         SECTION 3.1    POWERS AND DUTIES OF THE PREFERRED SECURITIES GUARANTEE TRUSTEE..................8
         SECTION 3.2    CERTAIN RIGHTS OF PREFERRED SECURITIES GUARANTEE TRUSTEE........................10
         SECTION 3.3    NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF GUARANTEE...........................13

ARTICLE IV
         PREFERRED SECURITIES GUARANTEE TRUSTEE.........................................................13
         SECTION 4.1    PREFERRED SECURITIES GUARANTEE TRUSTEE; ELIGIBILITY.............................13
         SECTION 4.2    APPOINTMENT, REMOVAL AND RESIGNATION OF PREFERRED SECURITIES
                  GUARANTEE TRUSTEES....................................................................14

ARTICLE V
         GUARANTEE......................................................................................15
         SECTION 5.1    GUARANTEE.......................................................................15
         SECTION 5.2    WAIVER OF NOTICE AND DEMAND.....................................................15
         SECTION 5.3    OBLIGATIONS NOT AFFECTED........................................................15
         SECTION 5.4    RIGHTS OF HOLDERS...............................................................16
         SECTION 5.5    GUARANTEE OF PAYMENT............................................................17
         SECTION 5.6    SUBROGATION.....................................................................17
         SECTION 5.7    INDEPENDENT OBLIGATIONS.........................................................17


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ARTICLE VI
         SUBORDINATION..................................................................................18

ARTICLE VII
         TERMINATION....................................................................................18

ARTICLE VIII
         INDEMNIFICATION................................................................................18
         SECTION 8.1    EXCULPATION.....................................................................18
         SECTION 8.2    INDEMNIFICATION.................................................................19

ARTICLE IX
         MISCELLANEOUS..................................................................................19
         SECTION 9.1    SUCCESSORS AND ASSIGNS..........................................................19
         SECTION 9.2    AMENDMENTS......................................................................20
         SECTION 9.3    NOTICES.........................................................................20
         SECTION 9.4    BENEFIT.........................................................................21
         SECTION 9.5    GOVERNING LAW...................................................................21
</TABLE>


                                                    ii

<PAGE>


                    PREFERRED SECURITIES GUARANTEE AGREEMENT

                  This GUARANTEE AGREEMENT (the "Preferred Securities
Guarantee"), dated as of ________, 200_ is executed and delivered by CCC
Information Services Group Inc., a Delaware corporation (the "Guarantor"),
and [ ], as trustee (the "Preferred Securities Guarantee Trustee"), for the
benefit of the Holders (as defined herein) from time to time of the Preferred
Securities (as defined herein) of CCCISG Capital Trust, a Delaware statutory
business trust (the "Issuer").

                  WHEREAS, pursuant to an Amended and Restated Declaration of
Trust (the "Declaration"), dated as of ________, 200_ among the trustees of
the Issuer named therein, the Guarantor, as sponsor, and the holders from
time to time of undivided beneficial interests in the assets of the Issuer,
the Issuer is issuing on the date hereof ________ preferred securities,
liquidation amount $__ per preferred security, having an aggregate liquidation
amount of $________, designated the __% Preferred Securities (the "Preferred
Securities");

                  WHEREAS, as incentive for the Holders to purchase the
Preferred Securities, the Guarantor desires irrevocably and unconditionally
to agree, to the extent set forth in this Preferred Securities Guarantee, to
pay to the Holders the Guarantee Payments (as defined herein) and to make
certain other payments on the terms and conditions set forth herein; and

                  WHEREAS, the Guarantor is also executing and delivering a
guarantee agreement (the "Common Securities Guarantee") in substantially
identical terms to this Preferred Securities Guarantee for the benefit of the
holders of the Common Securities (as defined herein), except that if an event
of default under the Indenture (as defined herein), has occurred and is
continuing, the rights of holders of the Common Securities to receive
Guarantee Payments under the Common Securities Guarantee are subordinated to
the rights of Holders to receive Guarantee Payments under this Preferred
Securities Guarantee.

                  NOW, THEREFORE, in consideration of the purchase by each
Holder, which purchase the Guarantor hereby agrees shall benefit the
Guarantor, the Guarantor executes and delivers this Preferred Securities
Guarantee for the benefit of the Holders.


<PAGE>

                                    ARTICLE I
                         DEFINITIONS AND INTERPRETATIONS

                  In this Preferred Securities Guarantee, unless the context
otherwise requires:

                  (a) capitalized terms used in this Preferred Securities
Guarantee but not defined in the preamble above have the respective meanings
assigned to them in this Article I;

                  (b) a term defined anywhere in this Preferred Securities
Guarantee has the same meaning throughout;

                  (c) all references to "the Preferred Securities Guarantee"
or "this Preferred Securities Guarantee" are to this Preferred Securities
Guarantee as modified, supplemented or amended from time to time;

                  (d) all references in this Preferred Securities Guarantee
to Articles and Sections are to Articles and Sections of this Preferred
Securities Guarantee, unless otherwise specified;

                  (e) a term defined in the Trust Indenture Act has the same
meaning when used in this Preferred Securities Guarantee, unless otherwise
defined in this Preferred Securities Guarantee or unless the context
otherwise requires; and

                  (f) a reference to the singular includes the plural and
vice versa.

                  "Affiliate" has the same meaning as given in the Indenture.

                  "Authorized Officer" of a Person means any Person that is
authorized to bind such Person.

                  "Business Day" means any day that is not a Saturday, Sunday
or day on which banking institutions and trust companies in The City of New
York are authorized or required by law, regulation or executive order to
close.

                  "Common Securities" means the securities representing
common undivided beneficial interests in the assets of the Issuer.

                  "Corporate Trust Office" means the office of the Preferred
Securities Guarantee Trustee at which the corporate trust business of the
Preferred Securities


                                       2
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Guarantee Trustee shall, at any particular time, be principally administered,
which office at the date of execution of this Agreement is located at
[           ].

                  "Covered Person" means any Holder or beneficial owner of
Preferred Securities.

                  "Debenture Issuer" means the Guarantor in its capacity as
the issuer of the Debentures.

                  "Debentures" means the series of debentures of the
Guarantor designated [             ] held by the Property Trustee (as defined
in the Declaration) of the Issuer.

                  "Direction" by a person means a written direction signed:
(a) if the Person is a natural person, by that Person; or (b) in any other
case in the name of such Person by one or more Authorized Officers of that
Person.

                  "Distribution" has the same meaning as given in the
Declaration.

                  "Event of Default" means a default by the Guarantor on any
of its payment or other obligations under this Preferred Securities Guarantee.

                  "Guarantee Payments" means the following payments or
distributions, without duplication, with respect to the Preferred Securities,
to the extent not paid or made by the Issuer:

                           (i) any accrued and unpaid Distributions (as defined
         in the Declaration) that are required to be paid on such Preferred
         Securities to the extent the Issuer shall have funds available
         therefor;

                           (ii) upon a voluntary or involuntary dissolution,
         winding-up or termination of the Issuer (other than in connection with
         the distribution of Debentures to the Holders in exchange for Preferred
         Securities as provided in the Declaration), the lesser of (a) the
         aggregate of the liquidation amount of such Preferred Securities plus
         all accrued and unpaid Distributions on such Preferred Securities to
         and including the date of payment, to the extent the Issuer shall have
         funds available therefor, and (b) the amount of assets of the Issuer
         remaining available for distribution to Holders in liquidation of the
         Issuer (amounts in clause (a) or (b), the "Liquidation Distribution");
         and


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                           (iii) the redemption price, including all accrued and
         unpaid Distributions to the date of redemption (the "Redemption Price")
         to the extent the Issuer has funds available therefor, with respect to
         any Preferred Securities called for redemption by the Issuer.

                           If an event of default under the Indenture has
         occurred and is continuing, the rights of holders of the Common
         Securities to receive payments under the Common Securities Guarantee
         Agreement are subordinated to the rights of Holders to receive
         Guarantee Payments.

                  "Holder" shall mean any holder, as registered on the books and
records of the Issuer, of any Preferred Securities; provided, however, that, in
determining whether the holders of the requisite percentage of Preferred
Securities have given any request, notice, consent or waiver hereunder, "Holder"
shall not include the Guarantor or any Affiliate of the Guarantor.

                  "Indemnified Person" means the Preferred Securities Guarantee
Trustee including in its individual capacity, any Affiliate of the Preferred
Securities Guarantee Trustee, or any officers, directors, shareholders, members,
partners, employees, representatives, nominees, custodians or agents of the
Preferred Securities Guarantee Trustee.

                  "Indenture" has the same meaning as given in the Declaration.

                  "Majority in liquidation amount of the Preferred Securities"
means, except as provided by the Trust Indenture Act, a vote by Holders of
Preferred Securities, voting separately as a class, of more than 50% of the
aggregate liquidation amount (including the stated amount that would be paid on
liquidation or otherwise) of all Preferred Securities.

                  "Officer's Certificate" means, with respect to any Person, a
certificate signed by one Authorized Officer of such Person. Any Officer's
Certificate delivered with respect to compliance with a condition or covenant
provided for in this Preferred Securities Guarantee shall include:

                                    (a) a statement that the officer signing the
                  Officer's Certificate has read the covenant or condition and
                  the definition relating thereto;


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                                    (b) a brief statement of the nature and
                  scope of the examination or investigation undertaken by such
                  officer in rendering the Officer's Certificate;

                                    (c) a statement that such officer has made
                  such examination or investigation as, in such officer's
                  opinion, is necessary to enable such officer to express an
                  informed opinion as to whether or not such covenant or
                  condition has been complied with; and

                                    (d) a statement as to whether or not, in the
                  opinion of such officer, such condition or covenant has been
                  complied with.

                  "Person" means a legal person, including any individual,
corporation, estate, partnership, joint venture, association, joint stock
company, limited liability company, trust, unincorporated association or
government or any agency or political subdivision thereof, or any other
entity of whatever nature.

                  "Preferred Securities Guarantee Trustee" means [           ],
until a Successor Preferred Securities Guarantee Trustee has been appointed
and has accepted such appointment pursuant to the terms of this Preferred
Securities Guarantee, and thereafter means each such Successor Preferred
Securities Guarantee Trustee.

                  "Responsible Officer" means, when used with respect to the
Preferred Securities Guarantee Trustee, any officer within the corporate
trust department of the Preferred Securities Guarantee Trustee (or any
successor of the Preferred Securities Guarantee Trustee), including any vice
president, any assistant vice president, any assistant secretary, any
assistant treasurer, any trust officer or any other officer of the Preferred
Securities Guarantee Trustee who customarily performs functions similar to
those performed by the Persons who at the time shall be such officers,
respectively, or to whom any corporate trust matter is referred because of
such person's knowledge of and familiarity with the particular subject and
who shall have direct responsibility for the administration of this Preferred
Securities Guarantee.

                  "Successor Preferred Securities Guarantee Trustee" means a
successor Preferred Securities Guarantee Trustee possessing the qualifications
to act as Preferred Securities Guarantee Trustee under Section 4.1.

                  "Trust Indenture Act" means the Trust Indenture Act of 1939,
as amended.


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                                   ARTICLE II
                               TRUST INDENTURE ACT

SECTION 2.1    TRUST INDENTURE ACT: APPLICATION

                  (a) This Preferred Securities Guarantee is subject to the
provisions of the Trust Indenture Act that are required to be part of this
Preferred Securities Guarantee and shall, to the extent applicable, be
governed by such provisions; and

                  (b) If and to the extent that any provision of this
Preferred Securities Guarantee limits, qualifies or conflicts with the duties
imposed by Sections 310 to 317, inclusive, of the Trust Indenture Act, such
imposed duties shall control.

SECTION 2.2    LIST OF HOLDERS OF SECURITIES

                  (a) The Guarantor shall provide the Preferred Securities
Guarantee Trustee with a list, in such form as the Preferred Securities
Guarantee Trustee may reasonably require, of the names and addresses of the
Holders ("List of Holders") as of such date, (i) within 15 days after each
record date for payment of Distributions, and (ii) at any other time within
30 days of receipt by the Guarantor of a written request for a List of
Holders as of a date no more than 15 days before such List of Holders is
given to the Preferred Securities Guarantee Trustee, provided that the
Guarantor shall not be obligated to provide such List of Holders at any time
the List of Holders does not differ from the most recent List of Holders
given to the Preferred Securities Guarantee Trustee by the Guarantor. The
Preferred Securities Guarantee Trustee may destroy any List of Holders
previously given to it on receipt of a new List of Holders.

                  (b) The Preferred Securities Guarantee Trustee shall comply
with its obligations under Section 311(a), 311(b) and Section 312(b) of the
Trust Indenture Act.

SECTION 2.3    REPORTS BY THE PREFERRED SECURITIES GUARANTEE TRUSTEE

                  Within 60 days after [            ] of each year,
commencing [           ], the Preferred Securities Guarantee Trustee shall
provide to the Holders such reports as are required by Section 313 of the
Trust Indenture Act, if any, in the form and in the manner provided by
Section 313 of the Trust Indenture Act. The Preferred Securities Guarantee
Trustee shall also comply with the requirements of Section 313(d) of the
Trust Indenture Act.


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SECTION 2.4    PERIODIC REPORTS TO PREFERRED SECURITIES GUARANTEE TRUSTEE

                  The Guarantor shall provide to the Preferred Securities
Guarantee Trustee such documents, reports and information as required by
Section 314 (if any) and the compliance certificate required by Section 314
of the Trust Indenture Act in the form, in the manner and at the times
required by Section 314 of the Trust Indenture Act. Delivery of such reports,
information and documents to the Preferred Securities Guarantee Trustee is
for informational purposes only and the Preferred Securities Guarantee
Trustee's receipt of such shall not constitute constructive notice of any
information contained therein or determinable from information contained
therein, including the Guarantor's compliance with any of its covenants
hereunder (as to which the Preferred Securities Guarantee Trustee is entitled
to rely exclusively on Officer's Certificates).

SECTION 2.5    EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT

                  The Guarantor shall provide to the Preferred Securities
Guarantee Trustee such evidence of compliance with any conditions precedent,
if any, provided for in this Preferred Securities Guarantee that relate to
any of the matters set forth in Section 314(c) of the Trust Indenture Act.
Any certificate or opinion required to be given by an officer pursuant to
Section 314(c)(1) may be given in the form of an Officer's Certificate.

SECTION 2.6    EVENTS OF DEFAULT; WAIVER

                  The Holders of a Majority in liquidation amount of
Preferred Securities may, by vote, on behalf of all Holders, waive any past
Event of Default and its consequences. Upon such waiver, any such Event of
Default shall cease to exist, and any Event of Default arising therefrom
shall be deemed to have been cured, for every purpose of this Preferred
Securities Guarantee, but no such waiver shall extend to any subsequent or
other default or Event of Default or impair any right consequent thereon.

SECTION 2.7    EVENT OF DEFAULT; NOTICE

                  (a) The Preferred Securities Guarantee Trustee shall, within
90 days after a Responsible Officer of the Preferred Securities Guarantee
Trustee obtains actual knowledge of the occurrence of an Event of Default,
transmit by mail, first class postage prepaid, to the Holders, notices of all
such Events of Default actually known to such Responsible Officer of the
Preferred Securities Guarantee Trustee, unless such defaults have been cured
before the giving of such notice, provided, that, the Preferred Securities
Guarantee Trustee shall be protected in withholding such notice if and so


                                       7
<PAGE>

long as a Responsible Officer of the Preferred Securities Guarantee Trustee
in good faith determines that the withholding of such notice is in the
interests of the Holders.

                  (b) The Preferred Securities Guarantee Trustee shall not be
deemed to have knowledge of any Event of Default unless the Preferred
Securities Guarantee Trustee shall have received written notice thereof, or a
Responsible Officer of the Preferred Securities Guarantee Trustee charged
with the administration of the Declaration shall have obtained actual
knowledge thereof.

SECTION 2.8    CONFLICTING INTERESTS

                  The Declaration and the Indenture shall be deemed to be
specifically described in this Preferred Securities Guarantee for the
purposes of clause (i) of the first proviso contained in Section 310(b) of
the Trust Indenture Act.

                                   ARTICLE III
                          POWERS, DUTIES AND RIGHTS OF
                     PREFERRED SECURITIES GUARANTEE TRUSTEE

SECTION 3.1    POWERS AND DUTIES OF THE PREFERRED SECURITIES GUARANTEE TRUSTEE

                  (a) This Preferred Securities Guarantee shall be held by
the Preferred Securities Guarantee Trustee for the benefit of the Holders,
and the Preferred Securities Guarantee Trustee shall not transfer this
Preferred Securities Guarantee to any Person except a Holder exercising his
or her rights pursuant to Section 5.4(b) or to a Successor Preferred
Securities Guarantee Trustee on acceptance by such Successor Preferred
Securities Guarantee Trustee of its appointment to act as Successor Preferred
Securities Guarantee Trustee. The right, title and interest of the Preferred
Securities Guarantee Trustee shall automatically vest in any Successor
Preferred Securities Guarantee Trustee, and such vesting and cessation of
title shall be effective whether or not conveyancing documents have been
executed and delivered pursuant to the appointment of such Successor
Preferred Securities Guarantee Trustee.

                  (b) If an Event of Default actually known to a Responsible
Officer of the Preferred Securities Guarantee Trustee has occurred and is
continuing, the Preferred Securities Guarantee Trustee shall enforce this
Preferred Securities Guarantee for the benefit of the Holders.

                  (c) The Preferred Securities Guarantee Trustee, before the
occurrence of any Event of Default and after the curing or waiver of all
Events of Default that may


                                       8
<PAGE>

have occurred, shall undertake to perform only such duties as are
specifically set forth in this Preferred Securities Guarantee, and no implied
covenants or obligations shall be read into this Preferred Securities
Guarantee against the Preferred Securities Guarantee Trustee. In case an
Event of Default has occurred (that has not been cured or waived pursuant to
Section 2.6) and is actually known to a Responsible Officer of the Preferred
Securities Guarantee Trustee, the Preferred Securities Guarantee Trustee
shall exercise such of the rights and powers vested in it by this Preferred
Securities Guarantee, and use the same degree of care and skill in its
exercise thereof, as a prudent person would exercise or use under the
circumstances in the conduct of his or her own affairs.

                  (d) No provision of this Preferred Securities Guarantee
shall be construed to relieve the Preferred Securities Guarantee Trustee from
liability for its own negligent action, its own negligent failure to act, its
own bad faith or its own willful misconduct, except that:

                           (i) prior to the occurrence of any Event of Default
         and after the curing or waiving of such Events of Default that may have
         occurred:

                                             (A) the duties and obligations of
                           the Preferred Securities Guarantee Trustee shall be
                           determined solely by the express provisions of this
                           Preferred Securities Guarantee, and the Preferred
                           Securities Guarantee Trustee shall not be liable
                           except for the performance of such duties and
                           obligations as are specifically set forth in this
                           Preferred Securities Guarantee, and no implied
                           covenants or obligations shall be read into this
                           Preferred Securities Guarantee against the Preferred
                           Securities Guarantee Trustee; and

                                             (B) in the absence of bad faith on
                           the part of the Preferred Securities Guarantee
                           Trustee, the Preferred Securities Guarantee Trustee
                           may conclusively rely, as to the truth of the
                           statements and the correctness of the opinions
                           expressed therein, upon any certificates or opinions
                           furnished to the Preferred Securities Guarantee
                           Trustee and conforming to the requirements of this
                           Preferred Securities Guarantee; but in the case of
                           any such certificates or opinions that by any
                           provision hereof are specifically required to be
                           furnished to the Preferred Securities Guarantee
                           Trustee, the Preferred Securities Guarantee Trustee
                           shall be under a duty to examine the same to
                           determine


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<PAGE>

                           whether or not they conform to the requirements of
                           this Preferred Securities Guarantee;

                           (ii) the Preferred Securities Guarantee Trustee shall
         not be liable for any error of judgment made in good faith by a
         Responsible Officer of the Preferred Securities Guarantee Trustee,
         unless it shall be proved that the Preferred Securities Guarantee
         Trustee was negligent in ascertaining the pertinent facts upon which
         such judgment was made;

                           (iii) the Preferred Securities Guarantee Trustee
         shall not be liable with respect to any action taken or omitted to be
         taken by it in good faith in accordance with the direction of the
         Holders of not less than a Majority in liquidation amount of the
         Preferred Securities relating to the time, method and place of
         conducting any proceeding for any remedy available to the Preferred
         Securities Guarantee Trustee, or exercising any trust or power
         conferred upon the Preferred Securities Guarantee Trustee under this
         Preferred Securities Guarantee; and

                           (iv) no provision of this Preferred Securities
         Guarantee shall require the Preferred Securities Guarantee Trustee to
         expend or risk its own funds or otherwise incur personal financial
         liability in the performance of any of its duties or in the exercise of
         any of its rights or powers, if the Preferred Securities Guarantee
         Trustee shall have reasonable grounds for believing that the repayment
         of such funds or liability is not reasonably assured to it under the
         terms of this Preferred Securities Guarantee or if indemnity reasonably
         satisfactory to the Preferred Securities Guarantee Trustee against such
         risk or liability is not reasonably assured to it.

SECTION 3.2    CERTAIN RIGHTS OF PREFERRED SECURITIES GUARANTEE TRUSTEE

                  (a)   Subject to the provisions of Section 3.1:

                           (i) The Preferred Securities Guarantee Trustee may
         conclusively rely, and shall be fully protected in acting or refraining
         from acting upon, any resolution, certificate, statement, instrument,
         opinion, report, notice, request, direction, consent, order, bond,
         debenture, note, other evidence of indebtedness or other paper or
         document believed by it to be genuine and to have been signed, sent or
         presented by the proper party or parties.


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<PAGE>

                           (ii) Any direction or act of the Guarantor
         contemplated by this Preferred Securities Guarantee shall be
         sufficiently evidenced by a Direction or an Officer's Certificate.

                           (iii) Whenever, in the administration of this
         Preferred Securities Guarantee, the Preferred Securities Guarantee
         Trustee shall deem it desirable that a matter be proved or established
         before taking, suffering or omitting any action hereunder, the
         Preferred Securities Guarantee Trustee (unless other evidence is herein
         specifically prescribed) may, in the absence of negligence, bad faith
         or willful misconduct on its part, request and conclusively rely upon
         an Officer's Certificate which, upon receipt of such request, shall be
         promptly delivered by the Guarantor.

                           (iv) The Preferred Securities Guarantee Trustee shall
         have no duty to see to any recording, filing or registration of any
         instrument (or any rerecording, refiling or reregistration thereof).

                           (v) The Preferred Securities Guarantee Trustee may
         consult with competent legal counsel of its selection, and the advice
         or written opinion of such counsel with respect to legal matters shall
         be full and complete authorization and protection in respect of any
         action taken, suffered or omitted by it hereunder in good faith and in
         accordance with such advice or opinion. Such counsel may be counsel to
         the Guarantor or any of its Affiliates and may include any of its
         employees. The Preferred Securities Guarantee Trustee shall have the
         right at any time to seek instructions concerning the administration of
         this Preferred Securities Guarantee from any court of competent
         jurisdiction.

                           (vi) The Preferred Securities Guarantee Trustee
         shall be under no obligation to exercise any of the rights or powers
         vested in it by this Preferred Securities Guarantee at the request
         or direction of any Holder, unless such Holder shall have provided
         to the Preferred Securities Guarantee Trustee such security and
         indemnity, reasonably satisfactory to the Preferred Securities
         Guarantee Trustee, against the reasonable costs, expenses (including
         reasonable attorneys' fees and reasonable expenses and the expenses
         of the Preferred Securities Guarantee Trustee's agents, nominees or
         custodians) and liabilities that might be incurred by it in
         complying with such request or direction, including such reasonable
         advances as may be requested by the Preferred Securities Guarantee
         Trustee; provided that, nothing contained in this Section 3.2(a)(vi)
         shall be taken to relieve the Preferred Securities Guarantee
         Trustee, upon the occurrence of an Event of Default, of its obligation
         to



                                       11
<PAGE>


         exercise the rights and powers vested in it by this Preferred
         Securities Guarantee.

                           (vii) The Preferred Securities Guarantee Trustee
         shall not be bound to make any investigation into the facts or matters
         stated in any resolution, certificate, statement, instrument, opinion,
         report, notice, request, direction, consent, order, bond, debenture,
         note, other evidence of indebtedness or other paper or document, but
         the Preferred Securities Guarantee Trustee, in its discretion, may make
         such further inquiry or investigation into such facts or matters as it
         may see fit.

                           (viii) The Preferred Securities Guarantee Trustee may
         execute any of the trusts or powers hereunder or perform any duties
         hereunder either directly or by or through agents, nominees, custodians
         or attorneys, and the Preferred Securities Guarantee Trustee shall not
         be responsible for any misconduct or negligence on the part of any
         agent or attorney appointed with due care by it hereunder.

                           (ix) Any action taken by the Preferred Securities
         Guarantee Trustee or its agents hereunder shall bind the Holders, and
         the signature of the Preferred Securities Guarantee Trustee or its
         agents alone shall be sufficient and effective to perform any such
         action. No third party shall be required to inquire as to the authority
         of the Preferred Securities Guarantee Trustee to so act or as to its
         compliance with any of the terms and provisions of this Preferred
         Securities Guarantee, both of which shall be conclusively evidenced by
         the Preferred Securities Guarantee Trustee's or its agent's taking such
         action.

                           (x) Whenever in the administration of this
         Preferred Securities Guarantee the Preferred Securities Guarantee
         Trustee shall deem it desirable to receive instructions with respect
         to enforcing any remedy or right or taking any other action
         hereunder, the Preferred Securities Guarantee Trustee (i) may request
         instructions from the Holders of a Majority in liquidation amount of
         the Preferred Securities, (ii) may refrain from enforcing such remedy
         or right or taking such other action until such instructions are
         received, and (iii) shall be protected in conclusively relying on or
         acting in accordance with such instructions.

                           (xi) The Preferred Securities Guarantee Trustee shall
         not be liable for any action taken by it in good faith and reasonably
         believed by it to be authorized or within the discretion or rights or
         powers conferred upon it by this Preferred Securities Guarantee.


                                       12
<PAGE>

                  (b) No provision of this Preferred Securities Guarantee
shall be deemed to impose any duty or obligation on the Preferred Securities
Guarantee Trustee to perform any act or acts or exercise any right, power,
duty or obligation conferred or imposed on it in any jurisdiction in which it
shall be illegal, or in which the Preferred Securities Guarantee Trustee
shall be unqualified or incompetent in accordance with applicable law, to
perform any such act or acts or to exercise any such right, power, duty or
obligation. No permissive power or authority available to the Preferred
Securities Guarantee Trustee shall be construed to be a duty.

SECTION 3.3    NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF GUARANTEE

                  The recitals contained in this Preferred Securities
Guarantee shall be taken as the statements of the Guarantor, and the
Preferred Securities Guarantee Trustee does not assume any responsibility for
their correctness. The Preferred Securities Guarantee Trustee makes no
representation as to the validity or sufficiency of this Preferred Securities
Guarantee.

                                   ARTICLE IV
                     PREFERRED SECURITIES GUARANTEE TRUSTEE

SECTION 4.1    PREFERRED SECURITIES GUARANTEE TRUSTEE; ELIGIBILITY

                  (a) There shall at all times be a Preferred Securities
Guarantee Trustee which shall:

                           (i)   not be an Affiliate of the Guarantor; and

                           (ii) be a corporation organized and doing business
         under the laws of the United States of America or any State or
         Territory thereof or of the District of Columbia, or a corporation or
         Person permitted by the Securities and Exchange Commission to act as a
         Property Trustee under the Trust Indenture Act, authorized under such
         laws to exercise corporate trust powers, having a combined capital and
         surplus of at least 50 million U.S. dollars ($50,000,000), and subject
         to supervision or examination by Federal, State, Territorial or
         District of Columbia authority. If such corporation publishes reports
         of condition at least annually, pursuant to law or to the requirements
         of the supervising or examining authority referred to above, then, for
         the purposes of this Section 4.1 (a)(ii), the combined capital and
         surplus of such corporation


                                       13
<PAGE>

         shall be deemed to be its combined capital and surplus as set forth
         in its most recent report of condition so published.

                  (b) If at any time the Preferred Securities Guarantee Trustee
shall cease to be eligible to so act under Section 4.1(a), the Preferred
Securities Guarantee Trustee shall immediately resign in the manner and with the
effect set out in Section 4.2(c).

                  (c) If the Preferred Securities Guarantee Trustee has or shall
acquire any "conflicting interest" within the meaning of Section 310(b) of the
Trust Indenture Act, the Preferred Securities Guarantee Trustee and Guarantor
shall in all respects comply with the provisions of Section 310(b) of the Trust
Indenture Act.

SECTION 4.2    APPOINTMENT, REMOVAL AND RESIGNATION OF PREFERRED SECURITIES
GUARANTEE TRUSTEES

                  (a) Subject to Section 4.2(b), the Preferred Securities
Guarantee Trustee may be appointed or removed without cause at any time by the
Guarantor.

                  (b) The Preferred Securities Guarantee Trustee shall not be
removed in accordance with Section 4.2(a) until a Successor Preferred Securities
Guarantee Trustee has been appointed and has accepted such appointment by
written instrument executed by such Successor Preferred Securities Guarantee
Trustee and delivered to the Guarantor.

                  (c) The Preferred Securities Guarantee Trustee appointed to
office shall hold office until a Successor Preferred Securities Guarantee
Trustee shall have been appointed or until its removal or resignation. The
Preferred Securities Guarantee Trustee may resign from office (without need
for prior or subsequent accounting) by an instrument in writing executed by
the Preferred Securities Guarantee Trustee and delivered to the Guarantor,
which resignation shall not take effect until a Successor Preferred
Securities Guarantee Trustee has been appointed and has accepted such
appointment by instrument in writing executed by such Successor Preferred
Securities Guarantee Trustee and delivered to the Guarantor and the resigning
Preferred Securities Guarantee Trustee.

                  (d) If no Successor Preferred Securities Guarantee Trustee
shall have been appointed and accepted appointment as provided in this Section
4.2 within 60 days after the Preferred Securities Guarantee Trustee has received
notice of removal or delivery to the Guarantor of an instrument of resignation,
the Preferred Securities Guarantee Trustee being removed or resigning, whichever
the case may be, may


                                       14
<PAGE>

petition any court of competent jurisdiction for appointment of a Successor
Preferred Securities Guarantee Trustee. Such court may thereupon, after
prescribing such notice, if any, as it may deem proper, appoint a Successor
Preferred Securities Guarantee Trustee.

                  (e) No Preferred Securities Guarantee Trustee shall be liable
for the acts or omissions to act of any Successor Preferred Securities Guarantee
Trustee.

                  (f) Upon termination of this Preferred Securities Guarantee or
removal or resignation of the Preferred Securities Guarantee Trustee pursuant to
this Section 4.2, the Guarantor shall pay to the Preferred Securities Guarantee
Trustee all amounts due to the Preferred Securities Guarantee Trustee accrued to
the date of such termination, removal or resignation.


                                    ARTICLE V
                                    GUARANTEE

SECTION 5.1    GUARANTEE

                  The Guarantor irrevocably and unconditionally agrees to pay in
full to the Holders the Guarantee Payments (without duplication of amounts
theretofore paid by the Issuer), as and when due, regardless of any defense,
right of set-off or counterclaim that the Issuer may have or assert. The
Guarantor's obligation to make a Guarantee Payment may be satisfied by direct
payment of the required amounts by the Guarantor to the Holders or by causing
the Issuer to pay such amounts to the Holders.

SECTION 5.2    WAIVER OF NOTICE AND DEMAND

                  The Guarantor hereby waives notice of acceptance of this
Preferred Securities Guarantee and of any liability to which it applies or may
apply, presentment, demand for payment, any right to require a proceeding first
against the Issuer or any other Person before proceeding against the Guarantor,
protest, notice of nonpayment, notice of dishonor, notice of redemption and all
other notices and demands.

SECTION 5.3    OBLIGATIONS NOT AFFECTED

                  The obligations, covenants, agreements and duties of the
Guarantor under this Preferred Securities Guarantee shall in no way be affected
or impaired by reason of the happening from time to time of any of the
following:


                                       15
<PAGE>

                  (a) the release or waiver, by operation of law or otherwise,
of the performance or observance by the Issuer of any express or implied
agreement, covenant, term or condition relating to the Preferred Securities to
be performed or observed by the Issuer;

                  (b) the extension of time for the payment by the Issuer of all
or any portion of the Distributions, Redemption Price, or any other sums payable
under the terms of the Preferred Securities or the extension of time for the
performance of any other obligation under, arising out of, or in connection
with, the Preferred Securities (other than an extension of time for payment of
Distributions, Redemption Price, or other sum payable that results from the
extension of any interest payment period on the Debentures permitted by the
Indenture);

                  (c) any failure, omission, delay or lack of diligence on the
part of the Holders to enforce, assert or exercise any right, privilege, power
or remedy conferred on the Holders pursuant to the terms of the Preferred
Securities, or any action on the part of the Issuer granting indulgence or
extension of any kind;

                  (d) the voluntary or involuntary liquidation, dissolution,
sale of any collateral, receivership, insolvency, bankruptcy, assignment for the
benefit of creditors, reorganization, arrangement, composition or readjustment
of debt of, or other similar proceedings affecting, the Issuer or any of the
assets of the Issuer;

                  (e) any invalidity of, or defect or deficiency in, the
Preferred Securities;

                  (f) the settlement or compromise of any obligation guaranteed
hereby or hereby incurred; or

                  (g) any other circumstance whatsoever that might otherwise
constitute a legal or equitable discharge or defense of a guarantor, it being
the intent of this Section 5.3 that the obligations of the Guarantor hereunder
shall be absolute and unconditional under any and all circumstances.

                  There shall be no obligation of the Holders to give notice to,
or obtain the consent of, the Guarantor with respect to the happening of any of
the foregoing.

SECTION 5.4    RIGHTS OF HOLDERS

                  (a) The Holders of a Majority in liquidation amount of the
Preferred Securities have the right to direct the time, method and place of
conducting of any


                                       16
<PAGE>

proceeding for any remedy available to the Preferred Securities Guarantee
Trustee in respect of this Preferred Securities Guarantee or exercising any
trust or power conferred upon the Preferred Securities Guarantee Trustee
under this Preferred Securities Guarantee.

                  (b) If the Preferred Securities Guarantee Trustee fails to
enforce this Preferred Securities Guarantee, any Holder may institute a legal
proceeding directly against the Guarantor to enforce its rights under this
Preferred Securities Guarantee, without first instituting a legal proceeding
against the Issuer, the Preferred Securities Guarantee Trustee or any other
Person. Notwithstanding the foregoing, if the Guarantor has failed to make a
Guarantee Payment, a Holder may directly institute a proceeding against the
Guarantor for enforcement of the Preferred Securities Guarantee for such
payment. The Guarantor waives any right or remedy to require that any action
on this Preferred Securities Guarantee be brought first against the Issuer or
any other person or entity before proceeding directly against the Guarantor.

SECTION 5.5    GUARANTEE OF PAYMENT

                  This Preferred Securities Guarantee creates a guarantee of
payment and not of collection.

SECTION 5.6    SUBROGATION

                  The Guarantor shall be subrogated to all rights, if any, of
the Holders against the Issuer in respect of any amounts paid to such Holders
by the Guarantor under this Preferred Securities Guarantee; provided,
however, that the Guarantor shall not (except to the extent required by
mandatory provisions of law) be entitled to enforce or exercise any right
that it may acquire by way of subrogation or any indemnity, reimbursement or
other agreement, in all cases as a result of payment under this Preferred
Securities Guarantee, if, at the time of any such payment, any amounts are
due and unpaid under this Preferred Securities Guarantee. If any amount shall
be paid to the Guarantor in violation of the preceding sentence, the
Guarantor agrees to hold such amount in trust for the Holders and to pay over
such amount to the Holders.

SECTION 5.7    INDEPENDENT OBLIGATIONS

                  The Guarantor acknowledges that its obligations hereunder
are independent of the obligations of the Issuer with respect to the
Preferred Securities, and that the Guarantor shall be liable as principal and
as debtor hereunder to make Guarantee Payments pursuant to the terms of this
Preferred Securities Guarantee


                                       17
<PAGE>

notwithstanding the occurrence of any event referred to in subsections (a)
through (g), inclusive, of Section 5.3.

                                   ARTICLE VI
                                  SUBORDINATION

                  This Preferred Securities Guarantee will constitute an
unsecured obligation of the Guarantor and will rank (i) subordinate and junior
in right of payment to all other liabilities of the Guarantor, except those
obligations or liabilities ranking equal or subordinate to the Preferred
Securities Guarantee by their terms, (ii) equally with any other securities,
liabilities or obligations that may have equal ranking by their terms; and (iii)
senior to the Guarantor's Common Stock, $0.10 par value.

                                   ARTICLE VII
                                   TERMINATION

                  This Preferred Securities Guarantee shall terminate upon (i)
the distribution of the Debentures to all Holders or (ii) full payment of the
amounts payable in accordance with the Declaration upon liquidation of the
Issuer. Notwithstanding the foregoing, this Preferred Securities Guarantee will
continue to be effective or will be reinstated, as the case may be, if at any
time any Holder must restore payment of any sums paid under the Preferred
Securities or under this Preferred Securities Guarantee.


                                  ARTICLE VIII
                                 INDEMNIFICATION

SECTION 8.1    EXCULPATION

                  (a) No Indemnified Person shall be liable, responsible or
accountable in damages or otherwise to the Guarantor or any Covered Person for
any loss, damage or claim incurred by reason of any act or omission performed or
omitted by such Indemnified Person in good faith in accordance with this
Preferred Securities Guarantee and in a manner that such Indemnified Person
reasonably believed to be within the scope of the authority conferred on such
Indemnified Person by this Preferred Securities Guarantee or by law, except that
an Indemnified Person shall be liable for any such loss, damage or claim
incurred by reason of such Indemnified


                                       18
<PAGE>

Person's negligence, bad faith or willful misconduct with respect to such
acts or omissions.

                  (b) An Indemnified Person shall be fully protected in
relying in good faith upon the records of the Guarantor and upon such
information, opinions, reports or statements presented to the Guarantor by
any Person as to matters the Indemnified Person reasonably believes are
within such other Person's professional or expert competence and who has been
selected with reasonable care by or on behalf of the Guarantor, including
information, opinions, reports or statements as to the value and amount of
the assets, liabilities, profits, losses, or any other facts pertinent to the
existence and amount of assets from which Distributions to Holders might
properly be paid.

SECTION 8.2    INDEMNIFICATION

                  (a) To the fullest extent permitted by applicable law, the
Guarantor agrees to indemnify and hold harmless each Indemnified Person from
and against any and all loss, damage, claim, liability or expense incurred by
such Indemnified Person by reason of any act or omission performed or omitted
by such Indemnified Person in good faith in accordance with this Preferred
Securities Guarantee and in a manner such Indemnified Person reasonably
believed to be within the scope of authority conferred on such Indemnified
Person by this Preferred Securities Guarantee, except that no Indemnified
Person shall be entitled to be indemnified in respect of any loss, damage,
claim, liability or expense incurred by such Indemnified Person by reason of
negligence, bad faith or willful misconduct with respect to such acts or
omissions.

                  (b) To the fullest extent permitted by applicable law,
reasonable out-of- pocket expenses (including reasonable legal fees) incurred
by an Indemnified Person in defending any claim, demand, action, suit or
proceeding shall, from time to time, be advanced by the Guarantor prior to
the final disposition of such claim, demand, action, suit or proceeding upon
receipt by the Guarantor of an undertaking by or on behalf of the Indemnified
Person to repay such amount if it shall be determined that the Indemnified
Person is not entitled to be indemnified as authorized in Section 8.2(a).

                  (c) The provisions set forth in this Section 8.2 shall
survive the termination of the Preferred Securities Guarantee and any
resignation or removal of the Preferred Securities Guarantee Trustee.


                                       19
<PAGE>


                                   ARTICLE IX
                                  MISCELLANEOUS

SECTION 9.1    SUCCESSORS AND ASSIGNS

                  All guarantees and agreements contained in this Preferred
Securities Guarantee shall bind the successors, assigns, receivers, trustees
and representatives of the Guarantor and shall inure to the benefit of the
Holders of the Preferred Securities then outstanding.

SECTION 9.2    AMENDMENTS

                  Except with respect to any changes that do not adversely
affect the rights of Holders (in which case no consent of Holders will be
required), this Preferred Securities Guarantee may only be amended with the
prior approval of the Holders of at least a Majority in liquidation amount of
the outstanding Preferred Securities. The provisions of Section 12.2 of the
Declaration with respect to meetings of Holders apply to the giving of such
approval.

SECTION 9.3    NOTICES

                  All notices provided for in this Preferred Securities
Guarantee shall be in writing, duly signed by the party giving such notice, and
shall be delivered by registered or certified mail, as follows:

                  (a) If given to the Preferred Securities Guarantee Trustee, at
the Preferred Securities Guarantee Trustee's mailing address set forth below (or
such other address as the Preferred Securities Guarantee Trustee may give notice
of to the Holders of the Preferred Securities):

                  [                 ]



                  (b) If given to the Guarantor, at the Guarantor's mailing
address set forth below (or such other address as the Guarantor may give notice
of to the Holders):

                  CCC Information Services Group Inc.
                  World Trade Center Chicago
                  444 Merchandise Mart
                  Chicago, Illinois 60654


                                       20
<PAGE>

                  Attention: Reid E. Simpson

                  with a copy to:

                  Skadden, Arps, Slate, Meagher & Flom (Illinois)
                  333 West Wacker Drive
                  Chicago, Illinois 60606
                  Attention: Peter C. Krupp, Esq.

                  (c) If given to any Holder, at the address set forth on the
books and records of the Issuer.

                  All such notices shall be deemed to have been given when
received in person, or mailed by first class mail, postage prepaid except
that if a notice or other document is refused delivery or cannot be delivered
because of a changed address of which no notice was given, such notice or
other document shall be deemed to have been delivered on the date of such
refusal or inability to deliver.

SECTION 9.4    BENEFIT

                  This Preferred Securities Guarantee is solely for the benefit
of the Holders and, subject to Section 3.1(a), is not separately transferable
from the Preferred Securities.

SECTION 9.5    GOVERNING LAW

                  THIS PREFERRED SECURITIES GUARANTEE SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD
TO ITS PRINCIPLES OF CONFLICTS OF LAWS.

                                       21

<PAGE>

                  THIS PREFERRED SECURITIES GUARANTEE is executed as of the day
and year first above written.

                                     CCC INFORMATION SERVICES
                                     GROUP INC.,
                                     as Guarantor


                                     By:
                                          ---------------------------------
                                           Name:
                                           Title:



                                     [                     ],
                                     as Preferred Securities Guarantee Trustee


                                     By:
                                          ---------------------------------
                                           Name:
                                           Title:







                                       22