Document:

TRADEMARK PURCHASE AGREEMENT
                          ----------------------------

          This Trademark Purchase Agreement, made this 17th day of February,
2000, by and between Finova Capital Corporation, a corporation incorporated
under the State of Delaware ("Finova"), with its principal place of business at
111 West 40th Street, City of New York, State of New York, Ann Mostoller,
Esquire, Chapter 7 ("Trustee"), Trustee for Caribbean Cigar Company in Chapter 7
Bankruptcy in the Eastern District of Tennessee; Trustee and Finova will at
times be referred to as ("Seller"), SJI Wholesale, Inc., a corporation organized
under the laws of the State of Tennessee, ("Buyer") with its principal place of
business at 6312 Baum Drive, Knoxville, Tennessee 37950, and RONALD JENKINS,
presently residing in Knoxville, Tennessee ("Guarantor").

          WHEREAS, Caribbean Cigar Company (a Florida Corporation) by and
through its Chapter 7 Estate ("Caribbean") is the owner of certain trademarks as
set forth in the Trademark Assignment and Release of Security Interests of
Exhibit "A";

          WHEREAS, Finova has Security Interests in certain ones of the
trademarks of Caribbean as set forth in the Trademark Assignment and Release of
Security Interests of Exhibit "A".

          WHEREAS, pursuant to court order in Case No. 99-30466 in the United
States Bankruptcy Court for the Eastern District of Knoxville, the Trustee has
been ordered to cause Caribbean to deliver to Finova such documents or
instruments as may be necessary to transfer to Finova certain of its trademarks
and all goodwill associated with such trademarks;

          WHEREAS, Buyer desires to obtain ownership of all trademarks of
Caribbean and all goodwill of the business symbolized by such trademarks;

<PAGE>

          WHEREAS, the parties desire that Finova fully release all of its
Security Interests in the trademarks of Caribbean and that ownership of all
trademarks of Caribbean including, but not limited to, the Marks, Registrations
and Applications, and all goodwill of the business symbolized by such trademarks
be transferred to Buyer;

          NOW, THEREFORE, in consideration of the mutual covenants, agreements,
representations, and warranties herein contained, the parties agree as follows,
with closing contingent upon the performance of all of the below agreed
obligations: a-d;

          1. Agreed obligations.

                   a.       Trustee and Finova execute the Trademark Assignment
                            and Release of Security Interests as set forth on
                            Exhibit "A".

                   b.       Buyer and Guarantor execute the Promissory Note as
                            set forth on Exhibit "B" and Guarantor executing the
                            Guaranty as set forth on Exhibit "C".

                   c.       Buyer and Finova execute the Security Agreement on
                            Exhibit "D".

                   d.       Buyer and Finova execute the Escrow Agreement of
                            Exhibit "E" and Buyer delivers to escrow agent one
                            hundred thousand (100,000) shares of the Big Hub,
                            Inc. stock.

          2. Sale. Buyer purchases and Seller sells for the sum of Three Hundred
Twenty-five Thousand Dollars ($325,000), to be paid to Finova in accordance with
the Promissory Note, all of Seller's right, title and interest in the
Trademarks, including but not limited to, the marks, registrations and
applications, and all goodwill of the business symbolized by such Trademarks as
more fully described on Exhibit "A".

          3. Security Interest. Buyer grants to Finova a security interest in
the Trademarks as more fully set forth on Exhibit "C" attached.

                   (a) Buyer shall, at its expense, take all reasonable actions
requested by Finova at any time, pertaining to any events that occur from the
effective date of this Agreement forward, to perfect, maintain, protect, and
enforce Finova's first priority security interest and other rights in the
Trademarks and the priority thereof, from time to time, including, without
limitation, executing and filing financing statements or continuation statements
and amendments thereof and executing and delivering such documents. In
furtherance thereof, Buyer will deliver to Finova a UCC-l Financing Statement
describing the Trademarks. The parties specifically recognize that any
occurrences that may have an effect on Finova's first

                                        2

<PAGE>

priority security interest that arose from events occurring prior to Buyer
acquiring the Trademarks, shall be subject solely to the discretion of Buyer;
the intent being that Finova specifically recognizes that since Buyer is
purchasing from Finova the Trademarks "AS IS" "WHERE IS", "WITH ALL FAULTS",
that Finova has no right to direct Buyer to take any action to perfect,
maintain, protect and enforce Finova's "first priority security interest"
resulting from events that have occurred prior to Buyer acquiring said
Trademarks;

                   (b) Buyer represents, warrants and covenants that, to
the best of its ability,

                            (i) it will not, after closing, cause any liens,
claims or encumbrances on the Trademarks whatsoever; and

                            (ii) Buyer shall not, without Finova's prior written
approval, sell, encumber or dispose of or permit the sale, encumbrances or
disposal of any Trademarks or all or any substantial part of any of its other
operating assets (or any interest of Buyer therein).

                   (c) As further consideration, Buyer will deliver to escrow
agent one hundred thousand (100,000) shares of the Big Hub, Inc. stock ("HUB")
to be held and disbursed by escrow agent as more fully set forth in the Escrow
Agreement, a copy of which is attached here as Exhibit "D".

          4. Representations and Warranties of Seller. Seller has the authority
and right to enter into this Agreement and perform its terms.

          5. Representations and Warranties of Buyer. The Buyer represents and
warrants to Seller as follows:

                   (a) Buyer's Good Standing and Authority. Buyer is validly
existing and in good standing under the laws of the State of Tennessee, and has
all requisite power and authority to execute and deliver this Agreement, and to
consummate the transactions contemplated hereby, and has obtained all consents
and approvals, and made all registrations, required to be made or obtained by it
in connection herewith.

                   (b) No Contravention. The execution, delivery and performance
of this Agreement, delivered by it in connection herewith does not violate (i)
any law, rule, regulation, order, writ, judgment, injunction, decree,
determination or award presently in effect having applicability to it, (ii) any
contract, indenture, mortgage, loan agreement, note, lease or other instrument
to which it may be bound or to which any of its assets is subject, or (iii) any
provision of its charter or by-laws.

                   (c) Validity. This Agreement is binding upon and is
enforceable against the Buyer in accordance with its terms.

                                       3

<PAGE>

                   (d) Registration. No registration with or consent or approval
of, or any other action by, any governmental authority or any other person is
required in connection with its execution, delivery and performance of, or is
necessary for the validity or enforceability of this Agreement.

                   (e) No Investment Advice. It acknowledges that Seller has not
given any investment advice, credit information or rendered any opinion as to
whether the purchase of the Trademarks is prudent.

                   (f) Sophisticated Buyer. Buyer is a sophisticated purchaser
with respect to the Trademarks and has adequate information to make informed
decisions regarding the purchase of the Trademarks and has, independently and
based upon such information as it has deemed appropriate, made its own
independent decision to enter into this Agreement. Buyer acknowledges and
understands that no employee, agent, representative or attorney of Seller has
been authorized to make, and that the Buyer has not relied upon and shall not be
entitled to rely upon, any statements or representations other than those
specifically contained in this Agreement.

                   (g) Due Diligence. Prior to executing this Agreement, Buyer
has made or has been given the opportunity to make such examinations, reviews
and investigations as it deems necessary or appropriate in making its decision
to purchase the Trademarks. Buyer has been and will continue to be solely
responsible for the making of its own independent investigation as to all
aspects of the Trademarks.

                   (h) No Representations. Except as expressly provided herein,
Seller does not and will not make any oral or written representations,
warranties, promises or guarantees whatsoever, whether expressed or implied,
concerning or with regard to, and expressly disclaims any liability or
obligation with respect to, concerning or relating to, any of the Trademarks.

                   (i) No Broker. Seller shall not be liable for any broker,
finder or other person or entity acting pursuant to the authority of Buyer in
connection with the transactions contemplated hereby.

                   (j) No Recourse. Buyer acknowledges that the assignment and
transfer of the Trademarks to Buyer is irrevocable and Buyer has no recourse to
Seller, except for any breach of this Agreement by Seller.

                   (k) Schedules. Buyer acknowledges that it reviewed Exhibit
"A" and that it is true and correct regarding stating the Trademarks that the
Buyer is purchasing.

                                       4

<PAGE>

                   (l) Buyer will from the date of possession of the Trademarks,
be the exclusive owner of whatever right, title and interest Buyer has in and to
each of the Trademarks, as were in existence at the time of acquisition of the
Trademarks. Buyer is accepting these Trademarks "AS IS" "WHERE IS", "WITH NO
FAULTS", Buyer expressly does not represent and warrant that Buyer will correct
any or all defects in title that were preexisting on the date of the purchase of
the Trademarks.

          6. Miscellaneous.

                   A.       Amendments. This Agreement may only be amended by
                            the written consent of all parties.

                   B.       Notices. Trustee fully completes its obligations
                            under this agreement by its execution of the
                            Assignment document of Exhibit "A" and thus no
                            further notices or communications between Trustee
                            and the other parties, Buyer and Finova, are
                            contemplated. All notices between the remaining
                            parties, Finova and Buyer, shall be in writing.
                            Notices delivered personally or by telecopier shall
                            be deemed received on the same business day if
                            delivered personally or by telecopier before 5:00
                            p.m. on such day, and otherwise on the next day.
                            Notices deposited with an overnight courier service
                            prior to this deadline on any business day shall be
                            deemed received on the next business day. Notices
                            deposited in the mail, postage prepaid, on any
                            business day shall be deemed received on the third
                            business day following such deposit. All notices to
                            Finova shall be given to:

                   FINOVA CAPITAL CORPORATION
                   111 West 40th Street
                   New York, New York 10018
                   Attention:  Ray Eichler
                   Telephone:  (212) 403-0732
                   Telecopier: (212) 403-0913

          With a copy to:

                   Ruskin, Moscou, Evans & Faltischek
                   170 Old Country Road
                   Mineola, New York 11510
                   Attention:  Jeffrey Wurst, Esquire
                   Telephone:  (516) 663-6517
                   Telecopier: (516) 663-6678

                                       5

<PAGE>

All notices to Buyer shall be given to:

          SJI Wholesale, Inc.
          6312 Baum Drive
          Knoxville, Tennessee 37950
          Attention:  Ron Jenkins
          Telephone:  (865) 584-3398
          Telecopier: (865) 584-6008

With a copy to:

          Stone & Hinds, P.C.
          700 First American Center
          507 Gay Street, S.W.
          Knoxville, Tennessee 37902
          Attention:  Maurice W. Gerard, Esquire
          Telephone:  (865) 546-6321
          Telecopier: (865) 546-0422

                   C.       Headings. The headings, titles, and subtitles
                            herein are inserted for convenience of reference
                            only and shall not control or effect the meaning or
                            construction of any of the provisions hereof

                   D.       Gender. As used herein, all pronouns shall
                            include the masculine, feminine, neuter, singular,
                            and plural thereof, where ever the context and the
                            facts require such construction.

                   E.       Governing Law. This Agreement shall be governed
                            and construed in accordance with the laws of the
                            State of New York.

                   F.       Severability. In the event any provisions of this
                            Agreement shall be held invalid or unenforceable
                            according to the law, such holding or actions shall
                            not invalidate or render unenforceable any other
                            provision hereof

                                       6

<PAGE>

                   G.       Entire Agreement. All exhibits and schedules
                            referred to in this Agreement are incorporated
                            herein and made a part hereof This Agreement and the
                            exhibits and schedules hereto, and the Agreement of
                            even date herewith between Finova and Ron Jenkins
                            ("Guarantor"), shall serve as a final integration
                            and expression of all agreements between Finova,
                            Buyer and Guarantor with respect to the subject
                            matter hereof, and any previous agreement,
                            representation or warranty, whether oral or written,
                            shall have no force and effect.

                   H.       Binding Effect. This Agreement shall be binding
                            upon and insure to the benefit of the parties hereto
                            and their respective assigns, and legal
                            representatives.

                   I.       Survival of Representations. All representations,
                            warranties, covenants, disclaimers, acknowledgments
                            and agreement made by the parties hereto shall be
                            considered to have been relied upon by the parties
                            and shall survive the execution, delivery and
                            performance of this Agreement and all other
                            documents contemplated herein.

                   J.       The parties recognize Guarantor has signed this
                            Agreement solely to acknowledge that he will sign as
                            a Guarantor of the monies obligated to be paid by
                            Buyer to Finova under this Agreement.

                   K.       The parties recognize that the Trustee has signed
                            this Agreement for the limited purpose of selling
                            all right, title and interest that Caribbean has in
                            the Trademarks (Exhibit "A") to sign Exhibit "A",
                            and to expressly put Buyer on notice that Caribbean
                            is selling the Trademarks "WHERE IS" and "AS IS",
                            and with all faults.

          IN WITNESS WHEREOF, the parties have caused this Trademark Purchase
Agreement to be duly executed on the date first below written.

                                          CARIBBEAN CIGAR COMPANY
Date:  2/15/00

                                          By: /s/ Ann Mostoller
                                          ---------------------
                                          Ann Mostoller, Esq, Chapter 7 Trustee

                                        7

<PAGE>

                                          FINOVA CAPITAL CORPORATION

Date: 2/17/00                             By: /s/ Raymond J. Eichler
                                          --------------------------
                                          Its:  AVP
                                          ---------
                                          RAYMOND J. EICHLER

                                          SJI WHOLESALE, INC.

Date: 2/14/00                             By: /s/ Ron Jenkins
                                          -------------------
                                          RON JENKINS, President

                                          GUARANTOR:

Date: 2/14/00                             By: /s/ Ron Jenkins
                                          -------------------
                                          RON JENKINS

                                       8SUPPLEMENT NO. 4

                                       TO

                            SERIES 1998-1 SUPPLEMENT

                          dated as of February 18, 2000

                                      among

                            RENTAL CAR FINANCE CORP.,

                        DOLLAR RENT A CAR SYSTEMS, INC.,

                        THRIFTY RENT-A-CAR SYSTEM, INC.,

                     DOLLAR THRIFTY AUTOMOTIVE GROUP, INC.,

                             BANKERS TRUST COMPANY,
                        as Trustee and Enhancement Agent

                  CREDIT  SUISSE FIRST  BOSTON,  NEW YORK BRANCH,
                        as the Series 1998-1 Letter of
                                 Credit Provider

                                       and

                          DOLLAR THRIFTY FUNDING CORP.,
                      as the sole Series 1998-1 Noteholder

                                       -1-

<PAGE>

                                SUPPLEMENT NO. 4
                           TO SERIES 1998-1 SUPPLEMENT

     This Supplement No. 4 to Series 1998-1  Supplement dated as of February 18,
2000  ("Supplement  No.  4"),  among  Rental  Car  Finance  Corp.,  an  Oklahoma
corporation ("RCFC"),  Dollar Rent A Car Systems,  Inc., an Oklahoma corporation
("Dollar"),   Thrifty   Rent-A-Car   System,   Inc.,  an  Oklahoma   corporation
("Thrifty"),  Dollar  Thrifty  Automotive  Group,  Inc., a Delaware  corporation
("DTAG"), Bankers Trust Company, a New York banking corporation,  as Trustee and
Enhancement Agent (the "Trustee"),  Credit Suisse First Boston, New York Branch,
as the Series  1998-1 Letter of Credit  Provider  ("CSFB"),  and Dollar  Thrifty
Funding Corp.,  an Oklahoma  corporation,  as the sole Series 1998-1  Noteholder
("DTFC")(RCFC,   Dollar,   Thrifty,   DTAG,  the  Trustee,  CSFB  and  DTFC  are
collectively referred to herein as the "Parties").

                                    RECITALS:

         A.  RCFC, as Issuer, and the Trustee  entered  into that  certain  Base
Indenture  dated as of December  13, 1995,  as amended by the  Amendment to Base
Indenture dated as of December 23, 1997 (the "Base Indenture"); and

         B.  RCFC and the  Trustee  entered  into  that  certain  Series  1998-1
Supplement  dated as of March 4, 1998, as subsequently  (i) amended by Amendment
No. 1 to Series 1998-1  Supplement dated as of March 4, 1999, (ii)  supplemented
by Supplement No. 1 to Series 1998-1 Supplement dated as of March 4, 1999, (iii)
supplemented by Supplement No. 2 to Series 1998-1  Supplement  dated as of March
4, 1999, and (iv)  supplemented by Supplement No. 3 to Series 1998-1  Supplement
dated as of October 20, 1999 (as amended to the date hereof,  the "Series 1998-1
Supplement"; the Base Indenture and any Supplement thereto, including the Series
1998-1 Supplement are collectively referred to herein as the "Indenture"); and

        C. The Parties wish to amend the Series 1998-1  Supplement  as  provided
herein.

         NOW THEREFORE, the Parties hereto agree as follows:

     1. Definitions.  Capitalized terms used in this Supplement No. 4 not herein
defined shall have the meaning  contained in the Series 1998-1 Supplement and if
not defined  therein  shall have the meaning set forth in the  Definitions  List
attached as Schedule 1 to the Base Indenture.

     2.  Amendments.  Section  4A.1 of the Series  1998-1  Supplement  is hereby
amended by deleting  the  reference  to  "$640,000,000"  and  replacing  it with
"$780,000,000".

     3.  Effect of  Supplement.  Except as  expressly  set  forth  herein,  this
Supplement No. 4 shall not by implication or otherwise limit, impair, constitute
a waiver of, or  otherwise  affect the rights and remedies of any of the Parties
hereto under the Series 1998-1 Supplement,  nor alter,  modify,  amend or in any
way affect any of the terms, conditions, obligations, covenants or

                                                        -2-

<PAGE>

agreements  contained in the Series 1998-1  Supplement,  all of which are hereby
ratified and affirmed in all  respected by each of the Parties  hereto and shall
continue  in full force and  effect.  This  Supplement  No. 4 shall apply and be
effective  only with respect to the  provisions of the Series 1998- 1 Supplement
specifically  referred  to  herein  and  any  references  in the  Series  1998-1
Supplement  to the  provisions  of the  Series  1998-1  Supplement  specifically
referred to herein shall be to such provisions as amended by this Supplement No.
4.

     4.  Applicable  Provisions.  Pursuant to Section 11.2 of the Base Indenture
and  Section  8.6 of the  Series  1998-1  Supplement,  the  Trustee,  RCFC,  the
Servicers,  the Required Noteholders with respect to the Series 1998-1 Notes and
the Series 1998-1  Letter of Credit  Provider may enter into a supplement to the
Indenture  for the  purpose of  amending  any  provisions  of the Series  1998-1
Supplement  provided that the Rating Agencies shall confirm that such supplement
will not result in the reduction or  withdrawal  of their ratings  applicable to
the  Commercial  Paper Notes and, as  evidenced  by an Opinion of Counsel,  such
supplement affects only the Series 1998-1 Noteholders.

     5. Waiver of Notice. Each of the Parties hereto waives any prior notice and
any notice  period that may be required  by any other  agreement  or document in
connection with the execution of this Supplement No. 4.

     6. Binding Effect. This Supplement No. 4 shall be binding upon and inure to
the benefit of the Parties and their respective successors and assigns.

     7.  GOVERNING  LAW. THIS  SUPPLEMENT NO. 4 SHALL BE CONSTRUED IN ACCORDANCE
WITH THE LAWS OF THE STATE OF NEW YORK (WITHOUT  GIVING EFFECT TO THE PROVISIONS
THEREOF REGARDING  CONFLICTS OF LAWS), AND THE OBLIGATIONS,  RIGHTS AND REMEDIES
OF THE PARTIES HERETO SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS.

     8.  Counterparts.  This  Supplement  No. 4 may be executed in any number of
counterparts and by different parties hereto in separate  counterparts,  each of
which when executed and  delivered  shall be deemed to be an original and all of
which taken together shall constitute but one and the same agreement.

                         [SIGNATURES ON FOLLOWING PAGES]

                                                        -2-

<PAGE>

         IN WITNESS WHEREOF, the Parties have caused this Supplement No. 4 to be
duly executed and delivered as of the day and year first above written.

           RCFC:

           RENTAL CAR FINANCE CORP.,
           an Oklahoma corporation

           By: ___________________________________________
                    Pamela S. Peck
                    Vice President

           TRUSTEE:

           BANKERS TRUST COMPANY, a New York banking
           corporation, as Trustee and Enhancement Agent

           By: ___________________________________________
           Name: _________________________________________
           Title: ________________________________________

           SERVICERS:

           DOLLAR RENT A CAR SYSTEMS, INC.,
           an Oklahoma corporation

           By: __________________________________________
                    Michael H. McMahon
                    Treasurer

           THRIFTY RENT-A-CAR SYSTEM, INC.,
           an Oklahoma corporation

           By: __________________________________________
                    Pamela S. Peck
                    Treasurer

                                                        -3-

<PAGE>

               DOLLAR THRIFTY AUTOMOTIVE GROUP, INC.,
               a Delaware corporation

               By: ______________________________________

                        Pamela S. Peck
                        Treasurer

               SERIES 1998-1 LETTER OF CREDIT PROVIDER:

               CREDIT SUISSE FIRST BOSTON, NEW YORK
               BRANCH, a Swiss banking corporation

               By: ______________________________________
               Name: ____________________________________
               Title: ___________________________________

               By: ______________________________________
               Name: ____________________________________
               Title: ___________________________________

               SOLE SERIES 1998-1 NOTEHOLDER:

               DOLLAR THRIFTY FUNDING CORP.,
               an Oklahoma corporation

               By: ______________________________________
                        Pamela S. Peck
                        Vice President

                                                        -4-

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