Document:

<PAGE>

                                                                    EXHIBIT 4.16

                          FOURTH SUPPLEMENTAL INDENTURE

     This FOURTH SUPPLEMENTAL INDENTURE (this "Supplemental Indenture") is dated
as of December 31, 2001, among SPEEDWAY HOLDINGS, INC., a Nevada corporation
(the "Guaranteeing Subsidiary"), SPEEDWAY MOTORSPORTS, INC., a Delaware
corporation (the "Company"), the other Guarantors (as defined in and listed on
the signature pages to the Indenture referred to below) and U.S. BANK NATIONAL
ASSOCIATION, as trustee under the Indenture referred to below (the "Trustee").

                                   WITNESSETH

     WHEREAS, the Company and the other Guarantors have heretofore executed and
delivered to the Trustee an indenture, dated as of May 11, 1999 (as supplemented
by the First Supplemental Indenture dated as of June 1, 1999, the Second
Supplemental Indenture dated as of December 31, 1999 and the Third Supplemental
Indenture dated December 31, 2000, the "Indenture"), providing for the issuance
in an aggregate principal amount of up to $325,000,000 of the Company's 8 1/2%
Senior Subordinated Notes due 2007 (the "Notes"); and

     WHEREAS, the Indenture provides that under certain circumstances the
Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental
indenture pursuant to which the Guaranteeing Subsidiary shall unconditionally
guarantee all of the Company's Obligations under the Notes and the Indenture on
the terms and conditions set forth herein (the "Note Guarantee"); and

     WHEREAS, the Guaranteeing Subsidiary is a wholly-owned subsidiary of the
Company; and

     WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is
authorized to execute and deliver this Supplemental Indenture;

     NOW THEREFORE, in consideration of the foregoing and for other good and
valuable consideration, the receipt of which is hereby acknowledged, the
Guaranteeing Subsidiary and the Trustee mutually covenant and agree for the
equal and ratable benefit of the Holders of the Notes as follows:

     1. Capitalized Terms. Capitalized terms used herein without definition
shall have the meanings assigned to them in the Indenture.

     2. Agreement to Guarantee. The Guaranteeing Subsidiary hereby agrees as
follows (notwithstanding anything to the contrary in this Supplemental
Indenture, such agreements of the Guaranteeing Subsidiary shall be construed as
identical to those agreements made by the

<PAGE>

Guarantors under the Indenture, and the obligations and rights of the
Guaranteeing Subsidiary hereunder shall be no more and no less than those of the
Guarantors under the Indenture):

     (a) Along with all Guarantors named in the Indenture, to jointly and
severally unconditionally guarantee to each Holder of a Note authenticated and
delivered by the Trustee and to the Trustee and its successors and assigns,
irrespective of the validity and enforceability of the Indenture, the Notes or
the obligations of the Company under this Supplemental Indenture, the Indenture
or the Notes, that:

          (i) the principal of and interest on the Notes will be promptly paid
     in full when due, whether at maturity, by acceleration, redemption or
     otherwise, and interest on the overdue principal of and interest on the
     Notes, if any, if lawful, and all other obligations of the Company to the
     Holders or the Trustee under this Supplemental Indenture, the Indenture or
     the Notes will be promptly paid in full or performed, all in accordance
     with the terms of this Supplemental Indenture, the Indenture and the Notes;
     and

          (ii) in case of any extension of time of payment or renewal of any
     Notes or any of such other obligations, that same will be promptly paid in
     full when due or performed in accordance with the terms of the extension or
     renewal, whether at stated maturity, by acceleration or otherwise. Failing
     payment when due of any amount so guaranteed or any performance so
     guaranteed for whatever reason, the Guaranteeing Subsidiary and the
     Guarantors will be jointly and severally obligated to pay the same
     immediately.

     (b) The obligations of the Guaranteeing Subsidiary hereunder and under the
Indenture shall be unconditional, irrespective of the validity, regularity or
enforceability of this Supplemental Indenture, the Notes or the Indenture, the
absence of any action to enforce the same, any waiver or consent by any Holder
of the Notes with respect to any provisions hereof, of the Indenture or of the
Notes, the recovery of any judgment against the Company, any action to enforce
the same or any other circumstance which might otherwise constitute a legal or
equitable discharge or defense of a guarantor.

     (c) The following is hereby waived by the Guaranteeing Subsidiary:
diligence, presentment, demand of payment, filing of claims with a court in the
event of insolvency or bankruptcy of the Company, any right to require a
proceeding first against the Company, protest, notice and all demands
whatsoever.

     (d) This Note Guarantee shall not be discharged except by complete
performance of the obligations contained herein, and in the Notes and the
Indenture, and the Guaranteeing Subsidiary accepts all obligations of a
Guarantor under the Indenture.

     (e) If any Holder or the Trustee is required by any court or otherwise to
return to the Company, the Guaranteeing Subsidiary or the Guarantors, or any
Custodian, Trustee, liquidator or other similar official acting in relation to
either the Company, the Guaranteeing Subsidiary or

                                       2

<PAGE>

the Guarantors, any amount paid by any of them to the Trustee or such Holder,
this Note Guarantee, to the extent theretofore discharged, shall be reinstated
in full force and effect.

     (f) The Guaranteeing Subsidiary agrees that it shall not be entitled to any
right of subrogation in relation to the Holders in respect of any obligations
guaranteed hereby and by the Indenture until payment in full of all obligations
guaranteed hereby and by the Indenture.

     (g) As between the Guarantors and the Guaranteeing Subsidiary, on the one
hand, and the Holders and the Trustee, on the other hand, (x) the maturity of
the obligations guaranteed hereby and by the Indenture may be accelerated as
provided in Article VI of the Indenture for the purposes of this Note Guarantee,
notwithstanding any stay, injunction or other prohibition preventing such
acceleration in respect of the obligations guaranteed hereby and by the
Indenture, and (y) in the event of any declaration of acceleration of such
obligations as provided in Article VI of the Indenture, such obligations
(whether or not due and payable) shall forthwith become due and payable by the
Guarantors and the Guaranteeing Subsidiary for the purpose of this Note
Guarantee.

     (h) The Guaranteeing Subsidiary and the Guarantors shall have the right to
seek contribution from any non-paying Guarantor so long as the exercise of such
right does not impair the rights of the Holders under the Guarantee.

     (i) Notwithstanding anything to the contrary in this Supplemental Indenture
or in Article XI of the Indenture, the aggregate amount of the Obligations
guaranteed hereunder and under the Indenture by the Guaranteeing Subsidiary
shall be reduced to the extent necessary to prevent the Note Guarantee of the
Guaranteeing Subsidiary from violating or becoming voidable under any law
relating to fraudulent conveyance or fraudulent transfer or similar laws
affecting the rights of creditors.

     3. Execution and Delivery. Notwithstanding Section 11.02 of the Indenture,
the Guaranteeing Subsidiary agrees that the Note Guarantee shall remain in full
force and effect notwithstanding any failure to endorse on each Note a notation
of such Note Guarantee.

     4. Guaranteeing Subsidiary May Consolidate, Etc. on Certain Terms.

     (a) Except as set forth in Articles IV and V and Section 11.04 of the
Indenture, nothing contained in this Supplemental Indenture, in the Indenture or
in any of the Notes shall prevent any consolidation or merger of the
Guaranteeing Subsidiary with or into the Company or shall prevent any sale or
conveyance of the property of the Guaranteeing Subsidiary as an entirety or
substantially as an entirety, to the Company or another Guarantor.

     (b) Except as set forth in Article IV of the Indenture, nothing contained
in this Supplemental Indenture, in the Indenture or in any of the Notes shall
prevent any consolidation or merger of the Guaranteeing Subsidiary with or into
a corporation or corporations other than the Company (whether or not affiliated
with the Guaranteeing Subsidiary), or successive consolidations or mergers in
which the Guaranteeing Subsidiary or its successor or successors

                                       3

<PAGE>

shall be a party or parties, or shall prevent any sale or conveyance of the
property of the Guaranteeing Subsidiary as an entirety or substantially as an
entirety, to a corporation other than the Company (whether or not affiliated
with the Guaranteeing Subsidiary) authorized to acquire and operate the same;
provided, however, that (i) the Guaranteeing Subsidiary hereby covenants and
agrees that, upon any such consolidation, merger, sale or conveyance, the Note
Guarantee, and the due and punctual performance and observance of all of the
covenants and conditions of this Supplemental Indenture and the Indenture to be
performed by such Guaranteeing Subsidiary, shall be expressly assumed (in the
event that the Guaranteeing Subsidiary is not the surviving corporation in the
merger) by supplemental indenture reasonably satisfactory in form to the
Trustee, executed and delivered to the Trustee, by the corporation formed by
such consolidation, or into which the Guaranteeing Subsidiary shall have been
merged, or by the corporation which shall have acquired such property and (ii)
immediately after giving effect to such transaction, no Default or Event of
Default would exist. In case of any such consolidation, merger, sale or
conveyance and upon the assumption by the successor corporation, by supplemental
indenture, executed and delivered to the Trustee and satisfactory in form to the
Trustee, of the Note Guarantee and the due and punctual performance of all of
the covenants and conditions of this Supplemental Indenture and the Indenture to
be performed by the Guaranteeing Subsidiary, such successor corporation shall
succeed to and be substituted for the Guaranteeing Subsidiary with the same
effect as if it had been named herein as a Guarantor. Such successor corporation
thereupon may cause to be signed any or all of the Subsidiary Guarantees to be
endorsed upon all of the Notes issuable under the Indenture which theretofore
shall not have been signed by the Company and delivered to the Trustee. All the
Subsidiary Guarantees so issued shall in all respects have the same legal rank
and benefit under the Indenture as the Subsidiary Guarantees theretofore and
thereafter issued in accordance with the terms of the Indenture as though all of
such Subsidiary Guarantees had been issued at the date of the execution of this
Supplemental Indenture.

     5. Releases.

     (a) Concurrently with any sale of assets (including, if applicable, all of
the capital stock of the Guaranteeing Subsidiary), any Liens in favor of the
Trustee in the assets sold thereby shall be released; provided, that in the
event of an Asset Sale, the Net Proceeds from such sale or other disposition are
treated in accordance with the provisions of Section 4.10 of the Indenture. If
the assets sold in such sale or other disposition include all or substantially
all of the assets of the Guaranteeing Subsidiary or all of the capital stock of
the Guaranteeing Subsidiary, then the Guaranteeing Subsidiary (in the event of a
sale or other disposition or all of the capital stock of the Guaranteeing
Subsidiary) or the corporation acquiring the property (in the event of a sale or
other disposition of all or substantially all of the assets of the Guaranteeing
Subsidiary) shall be released and relieved of its obligations under its Note
Guarantee or Section 11.03 of the Indenture, as the case may be; provided, that
in the event of an Asset Sale, the Net Proceeds from such sale or other
disposition are treated in accordance with the provisions of Section 4.10 of the
Indenture. Upon delivery by the Company to the Trustee of an Officers'
Certificate and an Opinion of Counsel to the effect that such sale or other
disposition was made by the Company in accordance with the provisions of the
Indenture, including without limitation Section 4.10 of the

                                       4

<PAGE>

Indenture, the Trustee shall execute any documents reasonably required in order
to evidence the release of the Guaranteeing Subsidiary from its obligations
under its Note Guarantee.

     (b) Upon the release by all holders of Senior Indebtedness and Guarantor
Senior Indebtedness of all guarantees issued by the Guaranteeing Subsidiary
relating to such Senior Indebtedness and Guarantor Senior Indebtedness and all
Liens on the property and assets of the Guaranteeing Subsidiary relating to
Senior Indebtedness and Guarantor Senior Indebtedness, then the Guaranteeing
Subsidiary shall be released and relieved of any obligations under its Note
Guarantee. Upon delivery by the Company to the Trustee of an Officers'
Certificate and an Opinion of Counsel to the effect that all holders of Senior
Indebtedness and Guarantor Senior Indebtedness have released all guarantees
issued by the Guaranteeing Subsidiary and all Liens on the property and assets
of the Guaranteeing Subsidiary relating to such Senior Indebtedness and
Guarantor Senior Indebtedness, the Trustee shall execute any documents
reasonably required in order to evidence the release of the Guaranteeing
Subsidiary from its obligations under its Note Guarantee.

     (c) In the event the Guaranteeing Subsidiary is not released from its
obligations under its Note Guarantee pursuant to either of paragraphs (a) or (b)
of this Section 5 or Section 11.04 of the Indenture, the Guaranteeing Subsidiary
shall remain liable for the full amount of principal of and interest on the
Notes and for the other obligations of any Guarantor under this Supplemental
Indenture or the Indenture, respectively, as provided in Article XI of the
Indenture or this Supplemental Indenture, respectively.

     6. Subordination of Note Guarantees. The obligations of the Guaranteeing
Subsidiary under its Note Guarantee pursuant to this Supplemental Indenture and
Article XI of the Indenture shall be junior and subordinated to the Guarantor
Senior Indebtedness of the Guaranteeing Subsidiary on the same basis as the
Notes are junior and subordinated to Senior Indebtedness. For the purposes of
the foregoing sentence, the Trustee and the Holders shall have the right to
receive and/or retain payments by the Guaranteeing Subsidiary only at such times
as they may receive and/or retain payments in respect of the Notes pursuant to
the Indenture, including Article X of the Indenture.

     7. No Recourse Against Others. No past, present or future director,
officer, employee, incorporator, stockholder or agent of the Guaranteeing
Subsidiary, as such, shall have any liability for any obligations of the Company
or any Guarantor under the Notes, the Subsidiary Guarantees, the Note Guarantee,
the Indenture or this Supplemental Indenture or for any claim based on, in
respect of, or by reason of, such obligations or their creation. Each Holder of
the Notes by accepting a Note waives and releases all such liability. The waiver
and release are part of the consideration for issuance of the Notes. Such waiver
may not be effective to waive liabilities under the federal securities laws and
it is the view of the SEC that such a waiver is against public policy.

     8. NEW YORK LAW TO GOVERN. THE INTERNAL LAW OF THE STATE OF NEW YORK SHALL
GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE BUT WITHOUT GIVING
EFFECT TO APPLICABLE PRINCIPLES OF

                                       5

<PAGE>

CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER
JURISDICTION WOULD BE REQUIRED THEREBY.

     9. Counterparts. The parties may sign any number of copies of this
Supplemental Indenture. Each signed copy shall be an original, but all of them
together represent the same agreement.

     10. Effect of Headings. The Section headings herein are for convenience
only and shall not affect the construction hereof.

     11. The Trustee. The Trustee shall not be responsible in any manner
whatsoever for or in respect of the validity or sufficiency of this Supplemental
Indenture or for or in respect of the recitals contained herein, all of which
recitals are made solely by the Guaranteeing Subsidiary and the Company.

                    [Signatures begin on the following page.]

                                       6

<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Fourth Supplemental
Indenture to be duly executed and attested, all as of the date first above
written.

                        GUARANTEEING SUBSIDIARY:

                        SPEEDWAY HOLDINGS, INC.

                        By: /s/ William R. Brooks
                            ----------------------------------------------------
                            Name: William R. Brooks
                            Title: Vice President

                        COMPANY:

                        SPEEDWAY MOTORSPORTS, INC.

                        By: /s/ William R. Brooks
                            ----------------------------------------------------
                            Name: William R. Brooks
                            Title: Vice President

                        GUARANTORS:

                        ATLANTA MOTOR SPEEDWAY, INC.
                        BRISTOL MOTOR SPEEDWAY, INC.
                        TEXAS MOTOR SPEEDWAY, INC.
                        600 RACING, INC.
                        SPEEDWAY CONSULTING & DESIGN, INC.
                        INEX CORP.

                        By: /s/ William R. Brooks
                            ----------------------------------------------------
                            Name: William R. Brooks
                            Title: Vice President

                                       7

<PAGE>

                        MOTORSPORTS BY MAIL, LLC
                        SMI SYSTEMS, LLC
                        SPEEDWAY FUNDING, LLC
                        SPEEDWAY MEDIA, LLC
                        SPEEDWAY PROPERTIES COMPANY, LLC

                        By: /s/ William R. Brooks
                            ----------------------------------------------------
                            Name: William R. Brooks
                            Title: Manager

                        IMS SYSTEMS LIMITED PARTNERSHIP

                        By: Speedway Motorsports, Inc., its General Partner

                        By: /s/ William R. Brooks
                            ----------------------------------------------------
                            Name: William R. Brooks
                            Title: Vice President

                        SPEEDWAY SYSTEMS, LLC

                        By: IMS Systems Limited Partnership, its sole manager

                            By: Speedway Motorsports, Inc., its general partner

                            By: /s/ William R. Brooks
                                ------------------------------------------------
                                Name: William R. Brooks
                                Title: Vice President

                        CHARLOTTE MOTOR SPEEDWAY, LLC
                        SPR, LLC

                        By: /s/ O. Bruton Smith
                            ----------------------------------------------------
                            Name: O. Bruton Smith
                            Title: Manager

                        LAS VEGAS MOTOR SPEEDWAY, LLC
                        SEARS POINT RACEWAY, LLC
                        NEVADA SPEEDWAY, LLC

                        By: /s/ Randall A. Storey
                            ----------------------------------------------------
                            Name: Randall Storey
                            Title: Manager

                                       8

<PAGE>

                        TRUSTEE:

                        U.S. BANK NATIONAL ASSOCIATION,
                            as Trustee.

                        By: /s/ Lori-Anne Rosenberg
                            ----------------------------------------------------
                            Authorized Signatory

                                       9<PAGE>

                                                                   EXHIBIT 10.13

                       FIRST AMENDMENT TO CREDIT AGREEMENT

     THIS FIRST AMENDMENT TO CREDIT AGREEMENT, dated as of September 12th, 2002
(this "Amendment"), relating to the Credit Agreement referenced below, is by and
among Speedway Motorsports, Inc., a Delaware corporation ("SMI"), and Speedway
Holdings, Inc., a Nevada corporation (successor by merger to Speedway Holdings,
LLC, a Delaware limited liability company) ("SH Inc." and together with SMI, the
"Borrowers"), the subsidiaries and related parties identified as Guarantors on
the signature pages hereto, the Lenders identified on the signature pages
hereto, and Bank of America, N.A., a national banking association formerly known
as NationsBank, N.A., as Administrative Agent for the Lenders (in such capacity,
the "Administrative Agent"). Terms used herein but not otherwise defined herein
shall have the meanings provided to such terms in the Credit Agreement.

                               W I T N E S S E T H

     WHEREAS, a $250 million credit facility has been extended to the Borrowers
pursuant to the terms of that Credit Agreement dated as of May 28, 1999 (as
amended and modified from time to time, the "Credit Agreement") among the
Borrowers, the subsidiaries and related parties identified as guarantors
therein, the Lenders identified therein and NationsBank, N.A. (now known as Bank
of America, N.A.), as Administrative Agent, First Union National Bank, as
Syndication Agent, and Credit Lyonnais Atlanta Agency, as Documentation Agent;

     WHEREAS, the Borrowers have requested certain modifications to the Credit
Agreement;

     WHEREAS, the requested modifications require the approval of the Required
Lenders;

     WHEREAS, the Required Lenders have agreed to the requested modifications on
the terms and conditions set forth herein;

     NOW, THEREFORE, IN CONSIDERATION of the premises and other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:

     1.   Amendment. The Credit Agreement is hereby amended as follows:

          (a)  The definition of "Applicable Percentage" is amended to read as
               follows:

               " "Applicable Percentage" means

               for purposes of calculating the applicable interest rate for any
          day for any Loan, the applicable Standby Letter of Credit Fee for any
          day for purposes of Section 3.5(b) or the applicable Trade Letter of
          Credit Fee for any day for purposes of Section 3.5(b) or the
          applicable Commitment Fee for any day for purposes of Section 3.5(a),
          the appropriate applicable percentage set forth below corresponding to
          the Consolidated Total Debt Ratio in effect as of the most recent
          Calculation Date:

<PAGE>

<TABLE>
<CAPTION>
---------------------------------------------------------------------------------------------------------------------
                                   Applicable                         Applicable        Applicable
                                 Percentage for      Applicable     Percentage for    Percentage for     Applicable
Pricing    Consolidated Total      Eurodollar      Percentage for   Standby Letter   Trade Letter of   Percentage for
 Level         Debt Ratio            Loans        Base Rate Loans    of Credit Fee      Credit Fee     Commitment Fee
---------------------------------------------------------------------------------------------------------------------
<S>       <C>                        <C>                 <C>             <C>               <C>              <C>
   I       Less than or equal
             to 2.50 to 1.00         0.75%               0%              0.75%             0.125%           0.175%
---------------------------------------------------------------------------------------------------------------------
   II      Less than or equal
           to 3.00 to 1.00 but
          greater than 2.50 to
                  1.00               1.00%               0%              1.00%             0.125%            0.20%
---------------------------------------------------------------------------------------------------------------------
  III      Less than or equal
           to 3.50 to 1.00 but
          greater than 3.00 to
                  1.00               1.25%               0%              1.25%             0.125%           0.225%
---------------------------------------------------------------------------------------------------------------------
   IV     Greater than 3.50 to
                  1.00               1.25%               0%              1.25%             0.125%            0.25%
---------------------------------------------------------------------------------------------------------------------
</TABLE>

          Determination of the appropriate Applicable Percentages shall be made
          as of each Calculation Date. The Consolidated Total Debt Ratio in
          effect as of a Calculation Date shall establish the Applicable
          Percentages for the Loans, the Standby Letter of Credit Fee, the Trade
          Letter of Credit Fee and the Commitment Fee that shall be effective as
          of the date designated by the Administrative Agent as the Applicable
          Percentage Change Date. The Administrative Agent shall determine the
          Applicable Percentages as of each Calculation Date and shall promptly
          notify the Borrowers and the Lenders of the Applicable Percentages so
          determined and of the Applicable Percentage Change Date. Such
          determinations by the Administrative Agent of the Applicable
          Percentages shall be conclusive absent demonstrable error. The initial
          Applicable Percentage[s] shall be based on Pricing Level I until the
          first Applicable Percentage Change Date occurring after September 12,
          2002."

          (b) The definition of "Consolidated Capital Charges Coverage Ratio" is
     amended to read as follows:

               " "Consolidated Capital Charges Coverage Ratio" means, as of any
          Calculation Date, the ratio of (i) Consolidated EBIT for the
          four-quarter period ended as of such Calculation Date, to (ii)
          Consolidated Interest Expense plus dividends paid on preferred and/or
          common stock and/or stock repurchases paid for the four-quarter period
          ended as of such Calculation Date."

          (c) Section 1.3 is amended to read as follows:

               "1.3 Accounting Terms.

               Except as otherwise expressly provided herein, all accounting
          terms used herein shall be interpreted, and all financial statements
          and certificates and reports as to financial matters required to be
          delivered to the Lenders hereunder shall be prepared, in accordance
          with GAAP applied on a consistent basis. All calculations made for the
          purposes of determining compliance with this Credit Agreement shall
          (except as otherwise expressly provided herein) be made by application
          of GAAP applied on a basis consistent with the most recent annual or
          quarterly financial

<PAGE>

          statements delivered pursuant to Section 7.1 hereof (or, prior to the
          delivery of the first financial statements pursuant to Section 7.1
          hereof, consistent with the financial statements as at December 31,
          1998); provided, however, if (a) Speedway Motorsports shall object in
          writing to determining such compliance on such basis at the time of
          delivery of such financial statements due to any change in GAAP or the
          rules promulgated with respect thereto or (b) the Administrative Agent
          or the Required Lenders shall so object in writing within 30 days
          after delivery of such financial statements, then such calculations
          shall be made on a basis consistent with the most recent financial
          statements delivered by Speedway Motorsports to the Lenders as to
          which no such objection shall have been made.

               Notwithstanding anything herein to the contrary, determination of
          (i) the applicable pricing level under the definition of "Applicable
          Percentage" and (ii) compliance with the financial covenants hereunder
          shall be made on a Pro Forma Basis."

          (d) Section 7.11(b) is amended to read as follows:

               "(b) Consolidated Total Debt Ratio. The Consolidated Total Debt
          Ratio at each Calculation Date shall be no greater than (i) 3.25 to
          1.0 on September 30, 2002, December 31, 2002, March 31, 2003; and (ii)
          3.0 to 1.0 on June 30, 2003 and on each Calculation Date thereafter."

          (e) Section 8.6 is amended to read as follows:

               "8.6 Restricted Payments.

                    None of the Credit Parties will directly or indirectly
               declare, order, make or set apart any sum for or pay any
               Restricted Payment, except (i) to make dividends payable solely
               in the same class of Capital Stock of such Person, (ii) to make
               dividends payable to any Credit Party, (iii) Speedway Motorsports
               may make dividends payable on its preferred and/or common stock
               and/or make stock repurchases of up to $15,000,000.00 in the
               aggregate annually provided no Default or Event of Default then
               exists or would be caused thereby, and (iv) as permitted by
               Section 8.7."

     2. Conditions Precedent. This Amendment shall be effective as of the date
hereof upon satisfaction of each of the following conditions precedent:

          (a) the execution of this Amendment by the Credit Parties and the
     Required Lenders;

          (b) receipt by the Administrative Agent, for the ratable benefit of
     the Lenders that execute and deliver this Amendment, an amendment fee of
     twelve and one-half basis points (0.125%) on the Revolving Commitments of
     such Lenders; and

          (c) receipt by the Administrative Agent of all other fees and expenses
     owing in connection with this Amendment.

<PAGE>

     3. Representations and Warranties. Each of the Credit Parties hereby
represents and warrants in connection herewith that as of the date hereof (after
giving effect hereto) (i) the representations and warranties set forth in
Section 6 of the Credit Agreement are true and correct in all material respects
(except those which expressly relate to an earlier date), and (ii) no Default or
Event of Default has occurred and is continuing under the Credit Agreement.

     4. Acknowledgments, Affirmations and Agreements. Each of the Credit Parties
(i) acknowledges and consents to all of the terms and conditions of this
Amendment, (ii) affirms all of its obligations under the Credit Documents and
(iii) agrees that this Amendment does not operate to reduce or discharge the
Guarantors' obligations under the Credit Agreement or the other Credit
Documents.

     5. Credit Agreement. Except as expressly modified hereby, all of the terms
and provisions of the Credit Agreement remain in full force and effect.

     6. Expenses. The Borrowers jointly and severally agree to pay all
reasonable costs and expenses in connection with the preparation, execution and
delivery of this Amendment, including the reasonable fees and expenses of the
Administrative Agent's legal counsel.

     7. Counterparts. This Amendment may be executed in any number of
counterparts, each of which when so executed and delivered shall be deemed an
original. It shall not be necessary in making proof of this Amendment to produce
or account for more than one such counterpart.

     8. Governing Law. This Amendment shall be deemed to be a contract under,
and shall for all purposes be construed in accordance with, the laws of the
State of North Carolina.

                  [Remainder of Page Intentionally Left Blank]

<PAGE>

     IN WITNESS WHEREOF, each of the parties hereto has caused a counterpart of
this Amendment to be duly executed and delivered as of the date first above
written.

BORROWERS:                    SPEEDWAY MOTORSPORTS, INC.,

                              a Delaware corporation

                              By: /s/ William R. Brooks
                                  ----------------------------------------------
                              Name: William R. Brooks
                              Title: Vice President

                              SPEEDWAY HOLDINGS, INC.,
                              a Nevada corporation

                              By: /s/ William R. Brooks
                                  ----------------------------------------------
                              Name: William R. Brooks
                              Title: Vice President

                              [Signatures Continue]

<PAGE>

GUARANTORS:                   600 RACING, INC.,
                              a North Carolina corporation
                              ATLANTA MOTOR SPEEDWAY, INC.,
                              a Georgia corporation
                              BRISTOL MOTOR SPEEDWAY, INC.,
                              a Tennessee corporation
                              CHARLOTTE MOTOR SPEEDWAY, LLC,
                              a Delaware limited liability company
                              INEX CORP.,
                              a North Carolina corporation
                              LAS VEGAS MOTOR SPEEDWAY, LLC,
                              a Delaware limited liability company
                              NEVADA SPEEDWAY, LLC,
                              a Delaware limited liability company
                              SEARS POINT RACEWAY, LLC,
                              a Delaware corporation
                              SMI SYSTEMS, LLC,
                              a Nevada limited liability company
                              SONOMA FUNDING CORPORATION,
                              a California corporation
                              SPEEDWAY CONSULTING & DESIGN, INC.,
                              a North Carolina corporation
                              SPEEDWAY FUNDING, LLC,
                              a Delaware limited liability company
                              SPEEDWAY MEDIA, LLC,
                              a North Carolina limited liability company
                              SPEEDWAY PROPERTIES COMPANY, LLC,
                              a Delaware limited liability company
                              SPR, LLC, a Delaware limited liability company
                              TEXAS MOTOR SPEEDWAY, INC.,
                              a Texas corporation

                              By: /s/ William R. Brooks
                                  ----------------------------------------------
                              Name: William R. Brooks
                              Title: Vice President

                              [Signatures Continue]

<PAGE>

                              MOTORSPORTS BY MAIL, LLC

                              By:   Speedway Systems LLC,
                                    its sole manager

                                    By: IMS Systems Limited Partnership,
                                        its sole manager

                                    By: Speedway Motorsports, Inc., its
                                        general partner

                                    By: /s/ William R. Brooks
                                        ----------------------------------------
                                    Name: William R. Brooks
                                    Title: Vice President

                              IMS SYSTEMS LIMITED PARTNERSHIP,
                              a North Carolina limited partnership

                              By:   Speedway Motorsports, Inc.,
                                    its general partner

                                    By: /s/ William R. Brooks
                                        ----------------------------------------
                                    Name: William R. Brooks
                                    Title: Vice President

                              SPEEDWAY SYSTEMS LLC,
                              a North Carolina limited liability company

                              By:   IMS Systems Limited Partnership,
                                    its sole manager

                              By:   Speedway Motorsports, Inc.,
                                    its general partner

                                    By: /s/ William R. Brooks
                                        ----------------------------------------
                                    Name: William R. Brooks
                                    Title: Vice President

                              [Signatures Continue]

<PAGE>

LENDERS:                      AMSOUTH

                              By: /s/ E.T. Hutton, II
                                  ----------------------------------------------
                              Name: E.T. Hutton, II
                              Title: Vice President

                              BANK OF AMERICA, N.A.,
                              in its capacity as Administrative Agent and
                              as a Lender

                              By: /s/ James E. Nash, Jr.
                                  ----------------------------------------------
                              Name: James E. Nash, Jr.
                              Title: Managing Director

                              BANK ONE, N.A.

                              By: /s/ Robert T. Humpreys
                                  ----------------------------------------------
                              Name: Robert T. Humpreys
                              Title: Vice President

                              CREDIT LYONNAIS NEW YORK BRANCH, in its capacity
                              as Documentation Agent and as a Lender

                              By: /s/ Attila Koc
                                  ----------------------------------------------
                              Name: Attila Koc
                              Title: Senior Vice President

                              FIRST TENNESSEE BANK

                              By: /s/ D. Scott Peak
                                  ----------------------------------------------
                              Name: D. Scott Peak
                              Title: Vice President

                              WACHOVIA BANK NATIONAL ASSOCIATION, in its
                              capacity as Syndication Agent and as a Lender

                              By: /s/ Andrew Payne
                                  ----------------------------------------------
                              Name: Andrew Payne
                              Title: Director

                              FLEET NATIONAL BANK

                              By: /s/ Peter Dorfman
                                  ----------------------------------------------
                              Name: Peter Dorfman
                              Title: Managing Director

                              [Signatures Continue]

<PAGE>

                              NATIONAL CITY BANK

                              By: /s/ Peter W. Richer
                                  ----------------------------------------------
                              Name: Peter W. Richer
                              Title: Vice President

                              SCOTIABANC, INC.

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

                              SOUTHTRUST BANK, N.A.

                              By: /s/ Daniel C. Ayscue
                                  ----------------------------------------------
                              Name: Daniel C. Ayscue
                              Title: Group Vice President

                              SUNTRUST BANK, N.A.

                              By: /s/ Stephen Denby
                                  ----------------------------------------------
                              Name: Stephen Denby
                              Title: Director

                              WELLS FARGO BANK, NATIONAL ASSOCIATION

                              By: /s/ Olga E. Brahaney
                                  ----------------------------------------------
                              Name: Olga E. Brahaney
                              Title: Assistant Vice President

                              [Signatures Continue]

<PAGE>

LEAD ARRANGER
AND BOOK MANAGER:             BANC OF AMERICA SECURITIES LLC

                              By: /s/ James E. Nash, Jr.
                                  ----------------------------------------------
                              Name: James E. Nash, Jr.
                              Title: Managing Director

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