<PAGE>




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                                                                    Exhibit 4.23






                       CCC INFORMATION SERVICES GROUP INC.

                                       and

                         -------------------------------

                               Debt Warrant Agent

                                -----------------

                                     FORM OF
                 [SENIOR] [SUBORDINATED] DEBT WARRANT AGREEMENT*

                        Dated as of ______________, 200_

                                ----------------






--------------------------------------------------------------------------------

<PAGE>




*    OPTIONS REPRESENTED BY BRACKETED OR BLANK SECTIONS HEREIN SHALL BE
     DETERMINED IN CONFORMITY WITH APPLICABLE PROSPECTUS SUPPLEMENT OR
     SUPPLEMENTS



                                TABLE OF CONTENTS



                                    ARTICLE I


                   ISSUANCE OF DEBT WARRANTS AND EXECUTION AND
                      DELIVERY OF DEBT WARRANT CERTIFICATES

Section 1.1   Issuance of Debt Warrants......................................1

Section 1.2   Form and Execution of Debt Warrant Certificates................2

Section 1.3   Issuance and Delivery of Debt Warrant Certificates.............3

Section 1.4   Temporary Debt Warrant Certificates............................3

Section 1.5   Payment of Certain Taxes.......................................3

Section 1.6   "Holder".......................................................4

                                   ARTICLE II

                     DURATION AND EXERCISE OF DEBT WARRANTS

Section 2.1   Duration of Debt Warrants......................................4

Section 2.2   Exercise of Debt Warrants......................................4

                                   ARTICLE III

         OTHER PROVISIONS RELATING TO RIGHTS OF HOLDERS OF DEBT WARRANTS

Section 3.1   No Rights as Holder of Underlying Debt Securities Conferred by
              Debt Warrants or Debt Warrant Certificates.....................6

Section 3.2   Lost, Stolen, Destroyed or Mutilated Debt Warrant Certificates.6

Section 3.3   Holder of Debt Warrants May Enforce Rights.....................6

                                   ARTICLE IV

                     EXCHANGE AND TRANSFER OF DEBT WARRANTS

[Section 4.1  Debt Warrant Register; Exchange and Transfer of Debt Warrants..7

Section 4.2   Treatment of Holders of Debt Warrants..........................8

Section 4.3   Cancellation of Debt Warrant Certificates......................8

                                    ARTICLE V

                        CONCERNING THE DEBT WARRANT AGENT

Section 5.1   Debt Warrant Agent.............................................8

Section 5.2   Conditions of Debt Warrant Agent's Obligations.................8

Section 5.3   Resignation and Removal; Appointment of Successor.............10

Section 5.4   Compliance With Applicable Laws...............................12

Section 5.5   Office........................................................12


<PAGE>

                                   ARTICLE VI

                                  MISCELLANEOUS

Section 6.1   Consolidation or Merger of the Company and Conveyance or
              Transfer Permitted Subject to Certain Conditions..............12

Section 6.2   Rights and Duties of Successor Corporation....................13

Section 6.3   Supplements and Amendments....................................13

Section 6.4   Notices and Demands to the Company and Debt Warrant Agent.....13

Section 6.5   Addresses.....................................................14

Section 6.6   Applicable Law................................................14

Section 6.7   Delivery of Prospectus........................................14

Section 6.8   Governmental Approvals........................................14

Section 6.9   Persons Having Rights under Debt Warrant Agreement............14

Section 6.10   Headings.....................................................15

Section 6.11   Counterparts.................................................15

Section 6.12   Inspection of Agreement......................................15

<PAGE>

     THIS [SENIOR] [SUBORDINATED] DEBT WARRANT AGREEMENT, dated as of
__________, between CCC Information Services Group Inc., a Delaware corporation
(the "Company"), and ____________________, a __________ organized and existing
under the laws of __________, as warrant agent (the "Debt Warrant Agent").

     WHEREAS, the Company has entered into an Indenture dated as of ___________,
200_, as amended and supplemented from time to time (the "Indenture"), with
_________, as trustee (the "Trustee"), providing for the issuance by the Company
from time to time, in one or more series, of debt securities evidencing its
unsecured, ________________ indebtedness (such debt securities, being referred
to as the "Securities"); and

     WHEREAS, the Company proposes to issue warrants (the "Debt Warrants")
representing the right to purchase Debt Securities of one or more series (the
"Underlying Debt Securities"); and

     WHEREAS, the Company has duly authorized the execution and delivery of this
Debt Warrant Agreement to provide for the issuance of Debt Warrants to be
exercisable at such times and for such prices, and to have such other
provisions, as shall be fixed as hereinafter provided;

     NOW, THEREFORE, in consideration of the premises and the mutual agreements
herein contained, the parties hereto agree as follows:


                                    ARTICLE I

                   ISSUANCE OF DEBT WARRANTS AND EXECUTION AND
                      DELIVERY OF DEBT WARRANT CERTIFICATES

     Section 1.1 Issuance of Debt Warrants. Debt Warrants may be issued from
time to time, together with or separately from any Securities (the "Offered Debt
Securities"). Prior to the issuance of any Debt Warrants, there shall be
established by or pursuant to a resolution or resolutions duly adopted by the
Company's Board of Directors or by any committee thereof duly authorized to act
with respect thereto (a "Board Resolution"):

     (a)  the title and aggregate number of such Debt Warrants;

     (b)  the offering price of such Debt Warrants, if any;

     (c)  whether such Debt Warrants are to be issued with any Offered Debt
          Securities and, if so, the title, aggregate principal amount and terms
          of any such Offered Debt Securities; the number of Debt Warrants to be
          issued with each $1,000 principal amount of such Offered Debt
          Securities (or such other principal amount of such Offered Debt
          Securities as is provided for in or pursuant to a Board Resolution);
          and the date, if any, on and after which such Debt Warrants and such
          Offered Debt Securities will be separately transferable (the
          "Detachable Date");

     (d)  the title, aggregate principal amount, ranking and terms (including
          the subordination and conversion provisions) of the Underlying Debt
          Securities that may be purchased upon exercise of such Debt Warrants;

     (e)  the time or times at which, or period or periods during which, such
          Debt Warrants may be exercised, the minimum or maximum amount of Debt
          Warrants which may be exercised at any one time and the final date on
          which such Debt Warrants may be exercised (the "Expiration Date");

     (f)  the principal amount of Underlying Debt Securities that may be
          purchased upon exercise of each Debt Warrant and the price, or the
          manner of determining the price (the "Debt Warrant Price"), at which
          such principal amount may be purchased upon such exercise;

     (g)  the terms of any right to redeem or call such Debt Warrants; and

     (h)  any other terms of such Debt Warrants not inconsistent with the
          provisions of this Agreement.

     Section 1.2 Form and Execution of Debt Warrant Certificates. (a) The Debt
Warrants shall be evidenced by warrant certificates (the "Debt Warrant
Certificates"), which may be in registered or bearer form and otherwise shall be
substantially in such form or forms as shall be established by or pursuant to a



<PAGE>

Board Resolution. Each Debt Warrant Certificate, whenever issued, shall be dated
the date it is countersigned by the Debt Warrant Agent and may have such
letters, numbers or other identifying marks and such legends or endorsements
printed, lithographed or engraved thereon as are not inconsistent with the
provisions of this Agreement, or as may be required to comply with any
applicable law, rule or regulation or with any rule or regulation of any
securities exchange on which the Debt Warrants may be listed, or to conform to
usage, as the officer of the Company executing the same may approve (such
officer's execution thereof to be conclusive evidence of such approval). Each
Debt Warrant Certificate shall evidence one or more Debt Warrants.

     (b)  The Debt Warrant Certificates shall be signed in the name and on
          behalf of the Company by its Chairman of the Board of Directors, Vice
          Chairman of the Board, or its President or one of its Vice Presidents.
          Such signatures may be manual or facsimile signatures of the present
          or any future holder of any such office and may be imprinted or
          otherwise reproduced on the Debt Warrant Certificates. The seal of the
          Company may be in the form of a facsimile thereof and may be
          impressed, affixed, imprinted or otherwise reproduced on the Debt
          Warrant Certificates.

     (c)  No Debt Warrant Certificate shall be valid for any purpose, and no
          Debt Warrant evidenced thereby shall be deemed issued or exercisable,
          until such Debt Warrant Certificate has been countersigned by the
          manual or facsimile signature of the Debt Warrant Agent. Such
          signature by the Debt Warrant Agent upon any Debt Warrant Certificate
          executed by the Company shall be conclusive evidence that the Debt
          Warrant Certificate so countersigned has been duly issued hereunder.

     (d)  In case any officer of the Company who shall have signed any Debt
          Warrant Certificate either manually or by facsimile signature shall
          cease to be such officer before the Debt Warrant Certificate so signed
          shall have been countersigned and delivered by the Debt Warrant Agent,
          such Debt Warrant Certificate nevertheless may be countersigned and
          delivered as though the person who signed such Debt Warrant
          Certificate had not ceased to be such officer of the Company; and any
          Debt Warrant Certificate may be signed on behalf of the Company by
          such person as, at the actual date of the execution of such Debt
          Warrant Certificate, shall be the proper officer of the Company,
          although at the date of the execution of this Agreement such person
          was not such an officer.

     Section 1.3 Issuance and Delivery of Debt Warrant Certificates. At any time
and from time to time after the execution and delivery of this Agreement, the
Company may deliver Debt Warrant Certificates executed by the Company to the
Debt Warrant Agent for countersignature. Except as provided in the following
sentence, the Debt Warrant Agent shall thereupon and deliver such Debt Warrant
Certificates to or upon the written request of the Company. Subsequent to the
original issuance of a Debt Warrant Certificate evidencing Debt Warrants, the
Debt Warrant Agent shall countersign a new Debt Warrant Certificate evidencing
such Debt Warrants only if such Debt Warrant Certificate is issued in exchange
or substitution for one or more previously countersigned Debt Warrant
Certificates evidencing such Debt Warrants or in connection with their transfer,
as hereinafter provided.

     Section 1.4 Temporary Debt Warrant Certificates. Pending the preparation of
definitive Debt Warrant Certificates, the Company may execute, and upon the
order of the Company the Debt Warrant Agent shall countersign and deliver,
temporary Debt Warrant Certificates that are printed, lithographed, typewritten,
mimeographed or otherwise produced, substantially of the tenor of the definitive
Debt Warrant Certificates in lieu of which they are issued and with such
appropriate insertions, omissions, substitutions and other variations as the
officer executing such Debt Warrant Certificates may determine, as evidenced by
such officer's execution of such Debt Warrant Certificates.

          If temporary Debt Warrant Certificates are issued, the Company
will cause definitive Debt Warrant Certificates to be prepared without
unreasonable delay. After the preparation of definitive Debt Warrant
Certificates, the temporary Debt Warrant Certificates shall be exchangeable for
definitive Debt Warrant Certificates upon surrender of the temporary Debt


<PAGE>

Warrant Certificates at the corporate trust office of the Debt Warrant Agent or
__________, without charge to the Holder, as defined in Section 1.6 hereof. Upon
surrender for cancellation of any one or more temporary Debt Warrant
Certificates, the Company shall execute and the Debt Warrant Agent shall
countersign and deliver in exchange therefor definitive Debt Warrant
Certificates representing the same aggregate number of Debt Warrants. Until so
exchanged, the temporary Debt Warrant Certificates shall in all respects be
entitled to the same benefits under this Agreement as definitive Debt Warrant
Certificates.

     Section 1.5 Payment of Certain Taxes. The Company will pay all stamp and
other duties, if any, to which this Agreement or the original issuance of the
Debt Warrants or Debt Warrant Certificates may be subject under the laws of the
United States of America or any state or locality.

     Section 1.6 "Holder". The term "Holder" or "Holders", as used herein with
reference to a Debt Warrant Certificate, shall mean [if registered Debt Warrants
the person or persons in whose name such Debt Warrant Certificate shall then be
registered as set forth in the Debt Warrant Register to be maintained by the
Debt Warrant Agent pursuant to Section 4.1 for that purpose] [if bearer Debt
Warrants - the bearer of such Debt Warrant Certificate] or, in the case of Debt
Warrants that are issued with Offered Debt Securities and cannot then be
transferred separately therefrom, [if registered Offered Debt Securities and
Debt Warrants that are not then detachable - the person or persons in whose name
the related Offered Debt Securities shall be registered as set forth in the
security register to be maintained by the Trustee for such Offered Debt
Securities pursuant to the Indenture] [if bearer Offered Debt Securities and
Debt Warrants that are not then detachable - the bearer of the related Offered
Debt Security], prior to the Detachable Date. [If registered Offered Debt
Securities and Debt Warrants that are not then detachable - The Company will, or
will cause the security registrar of any such Offered Debt Securities to, make
available to the Debt Warrant Agent at all times (including on and after the
Detachable Date, in the case of Debt Warrants originally issued with Offered
Debt Securities and not subsequently transferred separately therefrom) such
information as to holders of Offered Debt Securities with Debt Warrants as may
be necessary to keep the Warrant Register up to date.]

                                   ARTICLE II

                     DURATION AND EXERCISE OF DEBT WARRANTS

     Section 2.1 Duration of Debt Warrants. Each Debt Warrant may be exercised
at the time or times, or during the period or periods, provided by or pursuant
to the Board Resolution relating thereto and specified in the Debt Warrant
Certificate evidencing such Debt Warrant. Each Debt Warrant not exercised at or
before 5:00 P.M., New York City time, on its Expiration Date shall become void,
and all rights of the Holder of such Debt Warrant thereunder and under this
Agreement shall cease, provided that the Company reserves the right to, and may,
in its sole discretion, at any time and from time to time, at such time or times
as the Company so determines, extend the Expiration Date of the Warrants for
such periods of time as it chooses. Whenever the Expiration Date of the Debt
Warrants is so extended, the Company shall at least [20] days prior to the then
Expiration Date cause to be mailed to the Debt Warrant Agent and the registered
Holders of the Debt Warrants in accordance with the provisions of Section 6.4
hereof a notice stating that the Expiration Date has been extended and setting
forth the new Expiration Date.

     Section 2.2 Exercise of Debt Warrants. (a) The Holder of a Debt Warrant
shall have the right, at its option, to exercise such Debt Warrant and, subject
to subsection (f) of this Section 2.2, purchase the principal amount of
Underlying Debt Securities provided for therein at the time or times or during
the period or periods referred to in Section 2.1 and specified in the Debt
Warrant Certificate evidencing such Debt Warrant. Except as may be provided in a
Debt Warrant Certificate, a Debt Warrant may be exercised by completing the form
of election to purchase set forth on the reverse side of the Debt Warrant
Certificate, by duly executing and delivering the same, together with payment in
full of the Debt Warrant Price in lawful money of the United States of America,
in cash or by certified or official bank check or by bank wire transfer, to the
Debt Warrant Agent. Except as may be provided in a Debt Warrant Certificate, the
date on which such Debt Warrant Certificate and payment are received by the Debt


<PAGE>

Warrant Agent as aforesaid shall be deemed to be the date on which the Debt
Warrant is exercised and the Underlying Debt Securities are issued.

     (b)  Upon the exercise of a Debt Warrant, the Company shall issue, pursuant
          to the Indenture, in authorized denominations to or upon the order of
          the Holder of such Debt Warrant, the Underlying Debt Securities to
          which such Holder is entitled, in the form required under such
          Indenture, registered, in the case of Underlying Debt Securities in
          registered form, in such name or names as may be directed by such
          Holder.

     (c)  If fewer than all of the Debt Warrants evidenced by a Debt Warrant
          Certificate are exercised, the Company shall execute, and an
          authorized officer of the Debt Warrant Agent shall countersign and
          deliver, a new Debt Warrant Certificate evidencing the number of Debt
          Warrants remaining unexercised.

     (d)  The Debt Warrant Agent shall deposit all funds received by it in
          payment of the Debt Warrant Price in the account of the Company
          maintained with it for such purpose and shall advise the Company by
          telephone by 5:00 P.M., New York City time, of each day on which a
          payment of the Debt Warrant Price for Debt Warrants is received of the
          amount so deposited in its account. The Debt Warrant Agent shall
          promptly confirm such telephone advice in writing to the Company.

     (e)  The Debt Warrant Agent shall, from time to time, as promptly as
          practicable, advise the Company and the Trustee of (i) the number of
          Debt Warrants of each title exercised as provided herein, (ii) the
          instructions of each Holder with respect to delivery of the Underlying
          Debt Securities to which such Holder is entitled upon such exercise,
          (iii) the delivery of Debt Warrant Certificates evidencing the
          balance, if any, of the Debt Warrants remaining unexercised after such
          exercise, and (iv) such other information as the Company or the
          Trustee shall reasonably require. Such notice may be given by
          telephone to be promptly confirmed in writing.

     (f)  The Holder, and not the Company, shall be required to pay any stamp or
          other tax or other governmental charge that may be imposed in
          connection with any transfer involved in the issuance of the
          Underlying Debt Securities; and in the event that any such transfer is
          involved, the Company shall not be required to issue any Underlying
          Debt Securities (and the Holder's purchase of the Underlying Debt
          Securities upon the exercise of such Holder's Debt Warrant shall not
          be deemed to have been consummated) until such tax or other charge
          shall have been paid or it has been established to the Company's
          satisfaction that no such tax or other charge is due.

                                   ARTICLE III

                 OTHER PROVISIONS RELATING TO RIGHTS OF HOLDERS
                                OF DEBT WARRANTS

     Section 3.1 No Rights as Holder of Underlying Debt Securities Conferred by
Debt Warrants or Debt Warrant Certificates. No Debt Warrant or Debt Warrant
Certificate shall entitle the Holder to any of the rights of a holder of
Underlying Debt Securities, including, without limitation, the right to receive
the payment of principal of (or premium, if any, on) or interest, if any, on
Underlying Debt Securities or to enforce any of the covenants in the Indenture.

     Section 3.2 Lost, Stolen, Destroyed or Mutilated Debt Warrant Certificates.
Upon receipt by the Company and the Debt Warrant Agent of evidence reasonably
satisfactory to them of the ownership of and the loss, theft, destruction or
mutilation of any Debt Warrant Certificate and of indemnity (other than in
connection with any mutilated Debt Warrant Certificates surrendered to the Debt
Warrant Agent for cancellation) reasonably satisfactory to them, the Company
shall execute, and the Debt Warrant Agent shall countersign and deliver, in
exchange for or in lieu of each lost, stolen, destroyed or mutilated Debt
Warrant Certificate, a new Debt Warrant Certificate evidencing a like number of
Debt Warrants of the same title. Upon the issuance of a new Debt Warrant
Certificate under this Section, the Company may require the payment of a sum



<PAGE>

sufficient to cover any stamp or other tax or other governmental charge that may
be imposed in connection therewith and any other expenses (including the fees
and expenses of the Debt Warrant Agent) in connection therewith. Every
substitute Debt Warrant Certificate executed and delivered pursuant to this
Section in lieu of any lost, stolen or destroyed Debt Warrant Certificate shall
represent a contractual obligation of the Company, whether or not such lost,
stolen or destroyed Debt Warrant Certificate shall be at any time enforceable by
anyone, and shall be entitled to the benefits of this Agreement equally and
proportionately with any and all other Debt Warrant Certificates, duly executed
and delivered hereunder, evidencing Debt Warrants of the same title. The
provisions of this Section are exclusive and shall preclude (to the extent
lawful) all other rights and remedies with respect to the replacement of lost,
stolen, destroyed or mutilated Debt Warrant Certificates.

     Section 3.3 Holder of Debt Warrants May Enforce Rights. Notwithstanding any
of the provisions of this Agreement, a Holder, without the consent of the Debt
Warrant Agent, the Trustee, the holder of any Underlying Debt Securities or the
Holder of any other Debt Warrant, may, on its own behalf and for its own
benefit, enforce, and may institute and maintain any suit, action or proceeding
against the Company to enforce, or otherwise in respect of, its right to
exercise its Debt Warrant or Debt Warrants in the manner provided in this
Agreement and its Debt Warrant Certificate.

                                   ARTICLE IV

                     EXCHANGE AND TRANSFER OF DEBT WARRANTS

     [Section 4.1 Debt Warrant Register; Exchange and Transfer of Debt Warrants.
If registered Debt Warrants - The Debt Warrant Agent shall maintain, at its
corporate trust office [or at __________], a register (the " Debt Warrant
Register") in which, upon the issuance of Debt Warrants, or on and after the
Detachable Date in the case of Debt Warrants not separately transferable prior
thereto, and, subject to such reasonable regulations as the Debt Warrant Agent
may prescribe, it shall register Debt Warrant Certificates and exchanges and
transfers thereof. The Debt Warrant Register shall be in written form or in any
other form capable of being converted into written form within a reasonable
time.]

     Except as provided in the following sentence, upon surrender at the
corporate trust office of the Debt Warrant Agent [or at __________] Debt Warrant
Certificates may be exchanged for one or more other Debt Warrant Certificates
evidencing the same aggregate number of Debt Warrants of the same title, or may
be transferred in whole or in part. A Debt Warrant Certificate evidencing Debt
Warrants that are not then transferable separately from the Offered Debt
Security with which they were issued may be exchanged or transferred prior to
its Detachable Date only together with such Offered Debt Security and only for
the purpose of effecting, or in conjunction with, an exchange or transfer of
such Offered Debt Security; and on or prior to the Detachable Date, [if
registered Offered Debt Securities and Debt Warrants - each exchange or transfer
of such Offered Debt Security on the security register of the Offered Debt
Securities shall operate also to exchange or transfer the related Debt Warrant]
[if bearer Offered Debt Securities and Debt Warrants - an exchange or transfer
of possession of the related Offered Debt Security shall operate also to
exchange or transfer the related Debt Warrants]. [If registered Debt Warrants -
A transfer shall be registered upon surrender of a Debt Warrant Certificate to
the Debt Warrant Agent at its corporate trust office [or at __________] for
transfer, properly endorsed or accompanied by appropriate instruments of
transfer and written instructions for transfer, all in form satisfactory to the
Company and the Debt Warrant Agent duly signed by the registered holder or
holders thereof or by the duly appointed legal representative thereof or by a
duly authorized attorney, such signature to be guaranteed by (a) a bank or trust
company, (b) a broker or dealer that is a member of the National Association of
Securities Dealers, Inc. (the "NASD") or (c) a member of a national securities
exchange. Upon any such registration of transfer, a new Debt Warrant Certificate
shall be issued to the transferee.] Whenever a Debt Warrant Certificate is
surrendered for exchange or transfer, the Debt Warrant Agent shall countersign
and deliver to the person or persons entitled thereto one or more Debt Warrant
Certificates duly executed by the Company, as so requested. The Debt Warrant
Agent shall not be required to effect any exchange or transfer which will result
in the issuance of a Debt Warrant Certificate evidencing a fraction of a Debt



<PAGE>

Warrant. All Debt Warrant Certificates issued upon any exchange or transfer of a
Debt Warrant Certificate shall be the valid obligations of the Company,
evidencing the same obligations, and entitled to the same benefits under this
Agreement, as the Debt Warrant Certificate surrendered for such exchange or
transfer.

          No service charge shall be made for any exchange or transfer
of Debt Warrants, but the Company may require payment of a sum sufficient to
cover any tax or other governmental charge that may be imposed in connection
with any such exchange or transfer, in accordance with Section 2.2(f) hereof.

     Section 4.2 Treatment of Holders of Debt Warrants. Every Holder of a Debt
Warrant, by accepting the Debt Warrant Certificate evidencing the same, consents
and agrees with the Company, the Debt Warrant Agent and with every other Holder
of Debt Warrants of the same title that the Company and the Debt Warrant Agent
may treat the Holder of a Debt Warrant Certificate (or, if the Debt Warrant
Certificate is not then detachable, the Holder of the related Offered Debt
Security) as the absolute owner of such Debt Warrant for all purposes and as the
person entitled to exercise the rights represented by such Debt Warrant, any
notice to the contrary notwithstanding.

     Section 4.3 Cancellation of Debt Warrant Certificates. In the event that
the Company shall purchase, redeem or otherwise acquire any Debt Warrants after
the issuance thereof, the Debt Warrant Certificate or Certificates evidencing
such Debt Warrants shall thereupon be delivered to the Debt Warrant Agent and be
cancelled by it. The Debt Warrant Agent shall also cancel any Debt Warrant
Certificate (including any mutilated Debt Warrant Certificate) delivered to it
for exercise, in whole or in part, or for exchange [or transfer] [if Debt
Warrant Certificates are issued in bearer form - , except that Debt Warrant
Certificates delivered to the Debt Warrant Agent in exchange for Debt Warrant
Certificates of other denominations may be retained by the Debt Warrant Agent
for reissue]. Debt Warrant Certificates so cancelled shall be delivered by the
Debt Warrant Agent to the Company from time to time, or disposed of in
accordance with the instructions of the Company.

                                    ARTICLE V

                        CONCERNING THE DEBT WARRANT AGENT

     Section 5.1 Debt Warrant Agent. The Company hereby appoints
___________________ as Debt Warrant Agent of the Company in respect of the Debt
Warrants and the Debt Warrant Certificates upon the terms and subject to the
conditions set forth herein; and _______________ hereby accepts such
appointment. The Debt Warrant Agent shall have the powers and authority granted
to and conferred upon it in the Debt Warrant Certificates and hereby and such
further powers and authority acceptable to it to act on behalf of the Company as
the Company may hereafter grant to or confer upon it. All of the terms and
provisions with respect to such powers and authority contained in any Debt
Warrant Certificate are subject to and governed by the terms and provisions
hereof.

     Section 5.2 Conditions of Debt Warrant Agent's Obligations. The Debt
Warrant Agent accepts its obligations set forth herein upon the terms and
conditions hereof, including the following, to all of which the Company agrees
and to all of which the rights hereunder of the Holders shall be subject:

     (a)  Compensation and Indemnification. The Company agrees to promptly pay
          the Debt Warrant Agent the compensation [set forth in Exhibit A
          hereto] and to reimburse the Debt Warrant Agent for reasonable
          out-of-pocket expenses (including counsel fees) incurred by the Debt
          Warrant Agent in connection with the services rendered hereunder by
          the Debt Warrant Agent. The Company also agrees to indemnify the Debt
          Warrant Agent for, and to hold it harmless against, any loss,
          liability or expense (including the reasonable costs and expenses of
          defending against any claim of liability) incurred without negligence
          or bad faith on the part of the Debt Warrant Agent arising out of or
          in connection with its appointment, status or service as Debt Warrant
          Agent hereunder.

     (b)  Agent for the Company. In acting under this Agreement and in



<PAGE>

          connection with any Debt Warrant Certificate, the Debt Warrant Agent
          is acting solely as agent of the Company and does not assume any
          obligation or relationship of agency or trust for or with any Holder.

     (c)  Counsel. The Debt Warrant Agent may consult with counsel satisfactory
          to it, and the advice of such counsel 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 the
          advice of such counsel.

     (d)  Documents. The Debt Warrant Agent shall be protected and shall incur
          no liability for or in respect of any action taken, suffered or
          omitted by it in reliance upon any notice, direction, consent,
          certificate, affidavit, statement or other paper or document
          reasonably believed by it to be genuine and to have been presented or
          signed by the proper parties.

     (e)  Officer's Certificate. Whenever in the performance of its duties
          hereunder the Debt Warrant Agent shall reasonably deem it necessary
          that any fact or matter be proved or established by the Company prior
          to taking, suffering or omitting any action hereunder, the Debt
          Warrant Agent may (unless other evidence in respect thereof be herein
          specifically prescribed), in the absence of bad faith on its part,
          rely upon a certificate signed by the Chairman of the Board of
          Directors, the Vice Chairman of the Board of Directors, the President,
          an Executive Vice President, and by the Treasurer, an Assistant
          Treasurer, the Secretary or an Assistant Secretary of the Company (an
          "Officer's Certificate") delivered by the Company to the Debt Warrant
          Agent.

     (f)  Actions Through Agents. The Debt Warrant Agent may execute and
          exercise any of the rights or powers hereby vested in it or perform
          any duty hereunder either itself or by or through its attorneys or
          agents, and the Debt Warrant Agent shall not be answerable or
          accountable for any act, default, neglect or misconduct of any such
          attorney or agent or for any loss to the Company resulting from such
          neglect or misconduct; provided, however, that reasonable care shall
          have been exercised in the selection and continued employment of such
          attorneys and agents.

     (g)  Certain Transactions. The Debt Warrant Agent, and any officer,
          director or employee thereof, may become the owner of, or acquire any
          interest in, any Debt Warrant, with the same rights that he, she or it
          would have if it were not the Debt Warrant Agent, and, to the extent
          permitted by applicable law, he, she or it may engage or be interested
          in any financial or other transaction with the Company and may serve
          on, or as depository, trustee or agent for, any committee or body of
          holders of Underlying Debt Securities or other obligations of the
          Company as if it were not the Debt Warrant Agent. Nothing in this
          Agreement shall be deemed to prevent the Debt Warrant Agent from
          acting as Trustee under the Indenture.

     (h)  No Liability for Interest. The Debt Warrant Agent shall not be liable
          for interest on any monies at any time received by it pursuant to any
          of the provisions of this Agreement or of the Debt Warrant
          Certificates, except as otherwise agreed with the Company.

     (i)  No Liability for Invalidity. The Debt Warrant Agent shall incur no
          liability with respect to the validity of this Agreement (except as to
          the due execution hereof by the Debt Warrant Agent) or any Debt
          Warrant Certificate (except as to the countersignature thereof by the
          Debt Warrant Agent).

     (j)  No Responsibility for Company Representations. The Debt Warrant Agent
          shall not be responsible for any of the recitals or representations
          contained herein (except as to such statements or recitals as describe
          the Debt Warrant Agent or action taken or to be taken by it) or in any
          Debt Warrant Certificate (except as to the Debt Warrant Agent's
          countersignature on such Debt Warrant Certificate), all of which
          recitals and representations are made solely by the Company.



<PAGE>

     (k)  No Implied Obligations. The Debt Warrant Agent shall be obligated to
          perform only such duties as are specifically set forth herein, and no
          other duties or obligations shall be implied. The Debt Warrant Agent
          shall not be under any obligation to take any action hereunder that
          may subject it to any expense or liability, the payment of which
          within a reasonable time is not, in its reasonable opinion, assured to
          it. The Debt Warrant Agent shall not be accountable or under any duty
          or responsibility for the use by the Company of any Debt Warrant
          Certificate countersigned by the Debt Warrant Agent and delivered by
          it to the Company pursuant to this Agreement or for the application by
          the Company of the proceeds of the issuance or exercise of Debt
          Warrants. The Debt Warrant Agent shall have no duty or responsibility
          in case of any default by the Company in the performance of its
          covenants or agreements contained herein or in any Debt Warrant
          Certificate or in case of the receipt of any written demand from a
          Holder with respect to such default, including, without limiting the
          generality of the foregoing, any duty or responsibility to initiate or
          attempt to initiate any proceedings at law or otherwise or, except as
          provided in Section 6.4 hereof, to make any demand upon the Company.

     Section 5.3 Resignation and Removal; Appointment of Successor. (a) The
Company agrees, for the benefit of the Holders of the Debt Warrants, that there
shall at all times be a Debt Warrant Agent hereunder until all the Debt Warrants
are no longer exercisable.

     (b)  The Debt Warrant Agent may at any time resign as such by giving
          written notice to the Company, specifying the date on which such
          resignation shall become effective; provided that such date shall not
          be less than [90] days after the date on which such notice is given,
          unless the Company agrees to accept a shorter notice. Such resignation
          is subject to the appointment and acceptance of a successor Debt
          Warrant Agent, as hereinafter provided. The Debt Warrant Agent
          hereunder may be removed at any time by the filing with it of an
          instrument in writing signed by or on behalf of the Company and
          specifying such removal and the date when it shall become effective.
          Notwithstanding the provisions of this Section 5.3(b), such
          resignation or removal shall take effect only upon the appointment by
          the Company, as hereinafter provided, of a successor Debt Warrant
          Agent (which shall be a bank or trust company organized and doing
          business under the laws of the United States of America, any State
          thereof or the District of Columbia, authorized under the laws of such
          jurisdiction to exercise corporate trust powers and having at the time
          of its appointment as Debt Warrant Agent a combined capital and
          surplus (as set forth in its most recent published report of financial
          condition) of at least [$50,000,000]) and the acceptance of such
          appointment by such successor Debt Warrant Agent. In the event a
          successor Debt Warrant Agent has not been appointed and has not
          accepted its duties within [90] days of the Debt Warrant Agent's
          notice of resignation, the Debt Warrant Agent may apply to any court
          of competent jurisdiction for the designation of a successor Debt
          Warrant Agent. The obligations of the Company under Section 5.2(a)
          shall continue to the extent set forth therein notwithstanding the
          resignation or removal of the Debt Warrant Agent.

     (c)  In case at any time the Debt Warrant Agent shall resign, or shall be
          removed, or shall become incapable of acting, or shall be adjudged a
          bankrupt or insolvent, or shall file a petition seeking relief under
          Title 11 of the United States Code, as now constituted or hereafter
          amended, or under any other applicable federal or state bankruptcy law
          or similar law, or make an assignment for the benefit of its
          creditors, or consent to the appointment of a receiver or custodian
          for all or any substantial part of its property, or shall admit in
          writing its inability to pay or meet its debts as they mature, or if a
          receiver or custodian for it or for all or any substantial part of its
          property shall be appointed, or if an order of any court shall be
          entered for relief against it under the provisions of Title 11 of the
          United States Code, as now constituted or hereafter amended, or under
          any other applicable federal or state bankruptcy or similar law, or if
          any public officer shall have taken charge or control of the Debt



<PAGE>

          Warrant Agent or of its property or affairs for the purpose of
          rehabilitation, conservation or liquidation, a successor Debt Warrant
          Agent, qualified as aforesaid, shall be appointed by the Company by an
          instrument in writing, filed with the successor Debt Warrant Agent.
          Upon the appointment as aforesaid of a successor Debt Warrant Agent
          and acceptance by the successor Debt Warrant Agent of such
          appointment, the Debt Warrant Agent so superseded shall cease to be
          Debt Warrant Agent hereunder.

     (d)  Any successor Debt Warrant Agent appointed hereunder shall execute,
          acknowledge and deliver to its predecessor and to the Company an
          instrument accepting such appointment hereunder, and thereupon such
          successor Debt Warrant Agent, without any further act, deed or
          conveyance, shall become vested with all the authority, rights,
          powers, trusts, immunities, duties and obligations of such predecessor
          with like effect as if originally named as Debt Warrant Agent
          hereunder, and such predecessor, upon payment of its charges and
          disbursements then unpaid, shall thereupon become obligated to
          transfer, deliver and pay over, and such successor Debt Warrant Agent
          shall be entitled to receive, [the Debt Warrant Register and] all
          monies, securities and other property on deposit with or held by such
          predecessor (together with any books and records relating thereto), as
          Debt Warrant Agent hereunder.

     (e)  The Company shall cause notice of the appointment of any successor
          Debt Warrant Agent to be [if registered Debt Warrants - mailed by
          first-class mail, postage prepaid, to each Holder at its address
          appearing on the Debt Warrant Register or, in the case of Debt
          Warrants that are issued with Offered Debt Securities and cannot then
          be transferred separately therefrom, on the security register for the
          Offered Debt Securities] [if bearer Debt Warrants - published in an
          Authorized Newspaper (as defined in Section 101 of the Indenture) in
          The City of New York and in such other city or cities as may be
          specified by the Company at least twice, [the first such publication
          to be not earlier than the earliest date and not later than the latest
          date prescribed for the giving such notice]. Such notice shall set
          forth the name and address of the successor Debt Warrant Agent.
          Failure to give any notice provided for in this Section 5.3(e), or any
          defect therein, shall not, however, affect the legality or validity of
          the appointment of the successor Debt Warrant Agent.

     (f)  Any corporation into which the Debt Warrant Agent hereunder may be
          merged or converted, or any corporation with which the Debt Warrant
          Agent may be consolidated, or any corporation resulting from any
          merger, conversion or consolidation to which the Debt Warrant Agent
          shall be a party, or any corporation to which the Debt Warrant Agent
          shall sell or otherwise transfer all or substantially all of its
          assets and business, provided that such Corporation shall be qualified
          as aforesaid, shall be the successor Debt Warrant Agent under this
          Agreement without the execution or filing of any paper, the giving of
          any notice to Holders or any further act on the part of the parties
          hereto.

     Section 5.4 Compliance With Applicable Laws. The Debt Warrant Agent agrees
to comply with all applicable federal and state laws imposing obligations on it
in respect of the services rendered by it under this Debt Warrant Agreement and
in connection with the Debt Warrants, including (but not limited to) the
provisions of United States federal income tax laws regarding information
reporting and backup withholding. The Debt Warrant Agent expressly assumes all
liability for its failure to comply with any such laws imposing obligations on
it, including (but not limited to) any liability for failure to comply with any
applicable provisions of United States federal income tax laws regarding
information reporting and backup withholding.

     Section 5.5 Office. The Company will maintain an office or agency where
Debt Warrant Certificates may be presented for exchange, transfer or exercise.
The office initially designated for this purpose shall be the corporate trust
office of the Debt Warrant Agent at _____________.



<PAGE>

                                   ARTICLE VI

                                  MISCELLANEOUS

     Section 6.1 Consolidation or Merger of the Company and Conveyance or
Transfer Permitted Subject to Certain Conditions. To the extent permitted in the
Indenture, the Company may consolidate with or merge into another corporation or
other entity, or convey or transfer all or substantially all of its properties
and assets to any other corporation or other entity.

     Section 6.2 Rights and Duties of Successor Corporation. In case of any such
consolidation, merger, conveyance or transfer and upon any assumption of the
duties and obligations of the Company by the successor corporation, such
successor corporation shall succeed to and be substituted for the Company, with
the same effect as if it had been named herein, and the Company shall be
relieved of any further obligation under this Agreement and the Debt Warrants.
Such successor corporation thereupon may cause to be signed, and may issue
either in its own name or in the name of the Company, any or all of the
Underlying Debt Securities issuable pursuant to the terms hereof. All the
Underlying Debt Securities so issued shall in all respects have the same legal
rank and benefit under the Indenture as the Underlying Debt Securities
theretofore or thereafter issued in accordance with the terms of this Agreement
and the Indenture.

          In case of any such consolidation, merger, conveyance or transfer,
such changes in phraseology and form (but not in substance) may be made in the
Underlying Debt Securities thereafter to be issued as may be appropriate.

     Section 6.3 Supplements and Amendments. (a) The Company and the Debt
Warrant Agent may from time to time supplement or amend this Agreement without
the approval or consent of any Holder in order to cure any ambiguity, to correct
or supplement any provision contained herein that may be defective or
inconsistent with any other provision herein, or to make any other provision in
regard to matters or questions arising hereunder that the Company and the Debt
Warrant Agent may deem necessary or desirable and that shall not adversely
affect the interests of the Holders. Every Holder of Debt Warrants, whether
issued before or after any such supplement or amendment, shall be bound thereby.
Promptly after the effectiveness of any supplement or amendment that affects the
interests of the Holders, the Company shall give notice thereof, as provided in
Section 5.3(d) hereof, to the Holders affected thereby, setting forth in general
terms the substance of such supplement or amendment.

     (b)  The Company and the Debt Warrant Agent may modify or amend this
          Agreement and the Debt Warrant Certificates with the consent of the
          Holders of not fewer than a majority in principal amount of the
          underlying Debt Securities represented by the Debt Warrants affected
          by such modification or amendment, for any purpose; provided, however,
          that no such modification or amendment that shortens the period of
          time during which the Debt Warrants may be exercised, or otherwise
          materially and adversely affects the exercise rights of the Holders or
          reduces the percentage of Holders of outstanding Debt Warrants the
          consent of which is required for modification or amendment of this
          Agreement or the Debt Warrants, may be made without the consent of
          each Holder affected thereby.

     Section 6.4 Notices and Demands to the Company and Debt Warrant Agent. If
the Debt Warrant Agent shall receive any notice or demand addressed to the
Company by a Holder pursuant to the provisions of this Agreement or a Debt
Warrant Certificate (other than notices relating to the exchange[, transfer] or
exercise of Debt Warrants), the Debt Warrant Agent shall promptly forward such
notice or demand to the Company.

     Section 6.5 Addresses. Any communications from the Company to the Debt
Warrant Agent with respect to this Agreement shall be directed to
____________________, Attention: ____________________, and any communications
from the Debt Warrant Agent to the Company with respect to this Agreement shall
be directed to CCC Information Services Group Inc., World Trade Center Chicago,
444 Merchandise Mart, Chicago, Illinois 60654, Attention:
_______________________ (or such other address as shall be specified in writing
by the Debt Warrant Agent or by the Company, as the case



<PAGE>

may be).

     Section 6.6 Applicable Law. This Agreement and the Debt Warrants shall be
governed by and construed in accordance with the laws of the State of Delaware.

     Section 6.7 Delivery of Prospectus. The Company will furnish to the Debt
Warrant Agent sufficient copies of a prospectus or prospectuses relating to the
Underlying Debt Securities deliverable upon exercise of any outstanding Debt
Warrants (each a "Prospectus"), and the Debt Warrant Agent agrees to deliver to
the Holder of a Debt Warrant, prior to or concurrently with the delivery of the
Underlying Debt Securities issued upon the exercise thereof, a copy of the
Prospectus relating to such Underlying Debt Securities.

     Section 6.8 Governmental Approvals. The Company will take such action as
may be necessary to obtain and keep effective any and all permits, consents and
approvals of governmental agencies and authorities, and will make all filings
under federal and state securities laws (including, without limitation, the
maintenance of the effectiveness of a registration statement in respect of the
Underlying Debt Securities under the Securities Act of 1933), as may be or
become requisite in connection with the issuance, sale, transfer and delivery of
Debt Warrants and Debt Warrant Certificates, the exercise of Debt Warrants and
the issuance, sale and delivery of Underlying Debt Securities issued upon
exercise of Debt Warrants.

     Section 6.9 Persons Having Rights under Debt Warrant Agreement. Nothing in
this Agreement, expressed or implied, and nothing that may be inferred from any
of the provisions hereof is intended or shall be construed to confer upon or
give to any person or corporation other than the Company, the Debt Warrant Agent
and the Holders any right, remedy or claim under or by reason of this Agreement
or any covenant, condition, stipulation, promise or agreement herein; and all
covenants, conditions, stipulations, promises and agreements herein shall be for
the sole and exclusive benefit of the Company, the Debt Warrant Agent and their
respective successors and the Holders.

     Section 6.10 Headings. The descriptive headings of the several Articles and
Sections of this Agreement are inserted for convenience only and shall not
control or affect the meaning or construction of any of the provisions hereof.

     Section 6.11 Counterparts. This Agreement may be executed in one or more
counterparts, each of which when so executed and delivered shall be deemed to be
an original; but all such counterparts taken together shall constitute one and
the same agreement.

     Section 6.12 Inspection of Agreement. A copy of this Agreement shall be
available during business hours at the office of the Debt Warrant Agent for
inspection by any Holder. The Debt Warrant Agent may require such Holder to
submit its Debt Warrant Certificate for inspection prior to making such copy
available.

          IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed all as of the day and year first above written.

                                       CCC INFORMATION SERVICES GROUP INC.
[Seal]

                                       By__________________________
Attest:                                  Name and Title:


-----------------------------------
Name and Title

[Seal]
                                       By__________________________
Attest:                                  Name and Title:



-----------------------------------
Name and Title

<PAGE>











                                    Exhibit A
                                       to
                 [Senior] [Subordinated] Debt Warrant Agreement
                             dated as of __________



                      [Compensation of Debt Warrant Agent]