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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934

                               (Amendment No. 1*)


                         Motorcar Parts of America, Inc.
         --------------------------------------------------------------
                                (Name of Issuer)

                     Common Stock, par value $0.01 per share
         --------------------------------------------------------------
                         (Title of Class of Securities)

                                    620071100
         --------------------------------------------------------------
                                 (CUSIP Number)

                                December 20, 2006
         --------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

       [ ]   Rule 13d-1(b)
       [X]   Rule 13d-1(c)
       [ ]   Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).



CUSIP No.:   620071100                 13G                     Page 2 of 9 Pages
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1.   Names of Reporting Persons:     Costa Brava Partnership III L.P.
       I.R.S. Identification Nos. of above persons (entities only):   04-3387028

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2.   Check the Appropriate Box if a Member of a Group (See Instructions)
     (a)  [ ]
     (b)  [ ]

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3.   SEC Use Only

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4.   Citizenship or Place of Organization:    A Delaware limited partnership

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                      5.   Sole Voting Power:             877,958(1)
Number of
Shares                ----------------------------------------------------------
Beneficially          6.   Shared Voting Power:           -0-
Owned by
Each Reporting        ----------------------------------------------------------
Person With           7.   Sole Dispositive Power:        877,958(1)

                      ----------------------------------------------------------
                      8.   Shared Dispositive Power:      -0-

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9.   Aggregate Amount Beneficially Owned by Each Reporting Person:   877,958(1)

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10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares
     (See Instructions):______

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11.  Percent of Class Represented by Amount in Row (9):    10.5%(2)

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12.  Type of Reporting Person (See Instructions):     PN

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         (1) The Reporting Persons were the beneficial owners of 877,958 shares
of the Issuer's Common Stock, par value $0.01 per share on December 22, 2006.

         (2) The percentage ownership of the Reporting Persons in the Issuer's
Common Stock, $0.01 par value per share is based upon 8,326,455 issued and
outstanding shares as of August 9, 2006, as reported by the Issuer in its filing
on Form 10-Q on August 11, 2006.



CUSIP No.:   620071100                 13G                     Page 3 of 9 Pages
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1.   Names of Reporting Persons:     Roark, Rearden & Hamot, LLC
       I.R.S. Identification Nos. of above persons (entities only):   10-0000708

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2.   Check the Appropriate Box if a Member of a Group (See Instructions)
     (a)  [ ]
     (b)  [ ]

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3.   SEC Use Only

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4.   Citizenship or Place of Organization:  A Delaware limited liability company

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                      5.   Sole Voting Power:             877,958(3)
Number of
Shares                ----------------------------------------------------------
Beneficially          6.   Shared Voting Power:           -0-
Owned by
Each Reporting        ----------------------------------------------------------
Person With           7.   Sole Dispositive Power:        877,958(3)

                      ----------------------------------------------------------
                      8.   Shared Dispositive Power:      -0-

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9.   Aggregate Amount Beneficially Owned by Each Reporting Person:   877,958(3)

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10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares
     (See Instructions):______

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11.  Percent of Class Represented by Amount in Row (9):    10.5%(4)

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12.  Type of Reporting Person (See Instructions):     OO - Other

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         (3) The Reporting Persons were the beneficial owners of 877,958 shares
of the Issuer's Common Stock, par value $0.01 per share on December 22, 2006.

         (4) The percentage ownership of the Reporting Persons in the Issuer's
Common Stock, $0.01 par value per share is based upon 8,326,455 issued and
outstanding shares as of August 9, 2006, as reported by the Issuer in its filing
on Form 10-Q on August 11, 2006.



CUSIP No.:   620071100                 13G                     Page 4 of 9 Pages
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1.   Names of Reporting Persons:     Seth W. Hamot
       I.R.S. Identification Nos. of above persons (entities only):

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2.   Check the Appropriate Box if a Member of a Group (See Instructions)
     (a)  [ ]
     (b)  [ ]

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3.   SEC Use Only

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4.   Citizenship or Place of Organization:    A United States citizen

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                      5.   Sole Voting Power:             877,958(5)
Number of
Shares                ----------------------------------------------------------
Beneficially          6.   Shared Voting Power:           -0-
Owned by
Each Reporting        ----------------------------------------------------------
Person With           7.   Sole Dispositive Power:        877,958(5)

                      ----------------------------------------------------------
                      8.   Shared Dispositive Power:      -0-

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9.   Aggregate Amount Beneficially Owned by Each Reporting Person:   877,958(5)

--------------------------------------------------------------------------------
10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares
     (See Instructions):______

--------------------------------------------------------------------------------
11.  Percent of Class Represented by Amount in Row (9):    10.5%(6)

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12.  Type of Reporting Person (See Instructions):     IN, HC

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         (5) The Reporting Persons were the beneficial owners of 877,958 shares
of the Issuer's Common Stock, par value $0.01 per share on December 22, 2006.

         (6) The percentage ownership of the Reporting Persons in the Issuer's
Common Stock, $0.01 par value per share is based upon 8,326,455 issued and
outstanding shares as of August 9, 2006, as reported by the Issuer in its filing
on Form 10-Q on August 11, 2006.


Item 1.

     (a) Name of Issuer:

         Motorcar Parts of America, Inc.

     (b) Address of Issuer's Principal Executive Offices:

         2929 California Street
         Torrance, California 90503

Item 2.

     (a) Name of Person Filing:

              The name of the person filing is Costa Brava Partnership III L.P.
      Seth W. Hamot is the president of Roark, Rearden & Hamot, LLC, which is
      the general partner of Costa Brava Partnership III L.P. Each of the
      parties listed in the immediately preceding sentence is referred to
      individually as a "Reporting Person" and collectively as the "Reporting
      Persons". All of the shares of Common Stock, par value $0.01 per share
      that were beneficially owned by the Reporting Persons were held by Costa
      Brava Partnership III L.P.

     (b) Address of Principal Business Office or, if None, Residence:

              The principal business address of each of Costa Brava Partnership
     III L.P., Seth W. Hamot, and Roark, Rearden & Hamot, LLC is 420 Boylston
     Street, Boston, MA 02116.

     (c) Citizenship:

              Costa Brava Partnership III L.P. is a Delaware limited
     partnership. Roark, Rearden & Hamot, LLC is a Delaware limited liability
     company. Seth W. Hamot is a United States citizen.

     (d) Title of Class of Securities:

              Common Stock, par value $0.01 per share

     (e) CUSIP Number:

              620071100

                                       5


Item 3.  If this statement is filed pursuant to ss.ss.240.13d-1(b) or
240.13d-2(b) or (c), check whether the person filing is a:

(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).
(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C.
        78c).
(d) [ ] Investment company registered under section 8 of the Investment Company
        Act of 1940 (15 U.S.C. 80a-8).
(e) [ ] An investment adviser in accordance with ss.240.13d-1(b)(1)(ii)(E);
(f) [ ] An employee benefit plan or endowment fund in accordance with
        ss.240.13d-1(b)(1)(ii)(F);
(g) [ ] A parent holding company or control person in accordance with ss.
        240.13d-1(b)(1)(ii)(G);
(h) [ ] A savings associations as defined in Section 3(b) of the Federal Deposit
        Insurance Act (12 U.S.C. 1813);
(i) [ ] A church plan that is excluded from the definition of an investment
        company under section 3(c)(14) of the Investment Company Act of 1940
        (15 U.S.C. 80a-3);
(j) [ ] Group, in accordance with ss.240.13d-1(b)(1)(ii)(J).

              Not Applicable.

Item 4.  Ownership.

Provide the following information regarding the aggregate number and percentage
of the class of securities of the issuer identified in Item 1.

(a) through (c):

          The information requested hereunder is set forth in Items 5 through 9
          and 11 of the cover pages to this Schedule 13G.

Item 5.  Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than five
percent of the class of securities, check the following [ ].

Item 6.  Ownership of More than Five Percent on Behalf of Another Person.

              Not Applicable.

Item 7.  Identification and Classification of the Subsidiary Which Acquired the
Security Being Reported on By the Parent Holding Company or Control Person.

              Not applicable.

Item 8.  Identification and Classification of Members of the Group.

              Not applicable.

                                       6


Item 9.  Notice of Dissolution of Group.

              Not applicable.

Item 10. Certification.

By signing below I certify that, to the best of my knowledge and belief, the
securities referred to above were not acquired and are not held for the purpose
of or with the effect of changing or influencing the control of the issuer of
the securities and were not acquired and are not held in connection with or as a
participant in any transaction having that purpose or effect.

The Reporting Persons have agreed that this Schedule may be filed by Costa Brava
Partnership III L.P. on behalf of all of them jointly pursuant to Rule
13d-1(k)(1). A copy of such agreement is attached as an Exhibit to this
Schedule.

                                       7


                                    SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

                                            Date: December 22, 2006
                                                  -----------------


                                            COSTA BRAVA PARTNERSHIP III L.P.

                                            By:  Roark, Rearden & Hamot, LLC,
                                                    its General Partner


                                                    By: /s/ SETH W. HAMOT
                                                        ------------------------
                                                        Name:   Seth W. Hamot
                                                        Title:  President


Attention:        Intentional misstatements or omissions of fact constitute
                  Federal criminal violations (See 18 U.S.C. 1001).

                                       8


                                  EXHIBIT INDEX


Exhibit 1         Agreement Regarding the Joint Filing of Schedule 13G


                                       9


                                                                       Exhibit 1
                                                                       ---------


                               AGREEMENT REGARDING
                        THE JOINT FILING OF SCHEDULE 13G

The undersigned hereby agree as follows:

(i)  Each of them is individually eligible to use the Schedule 13G to which this
Exhibit is attached, and such Schedule 13G is filed on behalf of each of them;
and

(ii) Each of them is responsible for the timely filing of such Schedule 13G and
any amendments thereto, and for the completeness and accuracy of the information
concerning such person contained therein; but none of them is responsible for
the completeness or accuracy of the information concerning the other persons
making the filing, unless such person knows or has reason to believe that such
information is inaccurate.

Dated:  December 22, 2006

                                            COSTA BRAVA PARTNERSHIP III L.P.

                                            By: Roark, Rearden & Hamot, LLC, its
                                                      General Partner


                                            By: /s/ SETH W. HAMOT
                                                --------------------------------
                                                Name:   Seth W. Hamot
                                                Title:  President

                                            ROARK, REARDEN & HAMOT, LLC


                                            By: /s/ SETH W. HAMOT
                                                --------------------------------
                                                Name:   Seth W. Hamot
                                                Title:  President

                                            SETH W. HAMOT


                                            By: /s/ SETH W. HAMOT
                                                --------------------------------
                                                Seth W. Hamot