UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                            Washington, DC 20549-1004
                                    FORM 11-K

 X  ANNUAL REPORT PURSUANT TO SECTION 15(D) OF THE SECURITIES EXCHANGE
- ---
    ACT OF 1934


For the fiscal year ended December 31, 1999
                          -----------------

                  OR

    TRANSITION REPORT PURSUANT TO SECTION 15(D) OF THE SECURITIES EXCHANGE
- ---
    ACT OF 1934


For the transition period from                       to
                               ---------------------    ---------------------


Commission file number 33-19551
                       --------




                         SATURN INDIVIDUAL SAVINGS PLAN
                             FOR REPRESENTED MEMBERS
                       --------------------------------
                           (Full title of the plan)


                          General Motors Corporation
             300 Renaissance Center, Detroit, Michigan 48265-3000
             ----------------------------------------------------
              (Name of issuer of the securities held pursuant to
                  the plan and the address of its principal
                              executive offices)


Registrant's telephone number, including area code (313) 556-5000


    Notices and  communications  from the  Securities  and  Exchange  Commission
    relative to this report should be forwarded to:





                                          Peter R. Bible
                                          Chief Accounting Officer
                                          General Motors Corporation
                                          300 Renaissance Center
                                          Detroit, Michigan 48265-3000










                                      - 1 -






FINANCIAL STATEMENTS AND EXHIBIT
- --------------------------------

(a)   FINANCIAL STATEMENTS AND SUPPLEMENTAL SCHEDULES                Page No.
      -----------------------------------------------                --------
      Saturn Individual Savings Plan for Represented Members:
        Independent Auditors' Report. . . . . . . . . . . . . . . . .   3
        Statements of Net Assets Available for Benefits
          as of December 31, 1999 and 1998. . . . . . . . . . . . . .   4
        Statements of Changes in Net Assets Available for Benefits
          for the Years Ended December 31, 1999 and 1998. . . . . . .   5
        Notes to Financial Statements . . . . . . . . . . . . . . . .   6
        Supplemental schedules:
          Schedule of Assets Held for Investment Purposes,
             as of December 31, 1999. . . . . . . . . . . . . . . . .  15
        Supplemental  schedules  not  listed  above are  omitted
          because of the absence of the conditions under which
          they are required.

(b)   EXHIBIT
      -------

      Exhibit 23 - Independent Auditors' Consent. . . . . . . . . . .  17





                                    SIGNATURE


      The Plan.  Pursuant to the requirements of the Securities  Exchange Act of
1934,  the  Registrant  has duly caused  this annual  report to be signed on its
behalf by the undersigned hereunto duly authorized.



                                              Saturn Individual Savings Plan
                                              for Represented Members
                                              ------------------------------
                                                       (Name of plan)



Date  June 28, 2000              By:
      -------------


                                              /s/John F. Smith, Jr.
                                              ------------------------------
                                              (John F. Smith, Jr., Chairman
                                              of the Board of Directors)













                                      - 2 -









INDEPENDENT AUDITORS' REPORT
- ----------------------------

Saturn Individual Savings Plan
for Represented Members:

We have audited the accompanying statements of net assets available for benefits
of the Saturn Individual Savings Plan for Represented Members (the "Plan") as of
December 31, 1999 and 1998, and the related  statements of changes in net assets
available for benefits for the years then ended. These financial  statements are
the responsibility of the Plan's management. Our responsibility is to express an
opinion on these financial statements based on our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the  United  States of  America.  Those  standards  require  that we plan and
perform the audits to obtain  reasonable  assurance  about whether the financial
statements are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements.  An audit also includes assessing the accounting principles used and
significant  estimates  made by  management,  as well as evaluating  the overall
financial  statement  presentation.   We  believe  that  our  audits  provide  a
reasonable basis for our opinion.

In our  opinion,  such  financial  statements  present  fairly,  in all material
respects,  the net assets  available for benefits of the Plan as of December 31,
1999 and 1998,  and the changes in net assets  available  for  benefits  for the
years then ended in conformity with accounting  principles generally accepted in
the United States of America.

Our audits  were  conducted  for the  purpose of forming an opinion on the basic
financial statements taken as a whole. The supplemental  schedule of assets held
for investment  purposes as of December 31, 1999 is presented for the purpose of
additional  analysis  and  is  not  a  required  part  of  the  basic  financial
statements,  but is  supplementary  information  required by the  Department  of
Labor's Rules and  Regulations  for Reporting and Disclosure  under the Employee
Retirement  Income Security Act of 1974. This schedule is the  responsibility of
the  Plan's  management.  Such  schedule  has  been  subjected  to the  auditing
procedures  applied in the audit of the basic 1999 financial  statements and, in
our  opinion,  is fairly  stated in all material  respects  when  considered  in
relation to the basic financial statements taken as a whole.


/s/DELOITTE & TOUCHE LLP



Nashville, Tennessee
June 16, 2000














                                      - 3 -






                         SATURN INDIVIDUAL SAVINGS PLAN
                             FOR REPRESENTED MEMBERS

               STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
                       AS OF DECEMBER 31, 1999 AND 1998

                                                     1999             1998
                                                  -----------     -----------

ASSETS:
Investments, at fair value:

   Value of Interest in General Motors Savings
     Plans Master Trust                         $101,775,547      $87,724,172
   Mutual funds                                  115,220,310       83,796,511
   Fixed income fund                               6,710,380        4,427,712
   Loans to participants                          15,353,396       13,779,219

Investments, at contract value:
   Investment contracts stated at cost
     plus accumulated interest                    56,984,632       42,008,925
                                                 -----------      -----------


NET ASSETS AVAILABLE FOR BENEFITS               $296,044,265     $231,736,539
                                                 ===========      ===========



Reference should be made to the Notes to Financial Statements.





































                                      - 4 -






                         SATURN INDIVIDUAL SAVINGS PLAN
                             FOR REPRESENTED MEMBERS

          STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
                FOR THE YEARS ENDED DECEMBER 31, 1999 AND 1998


                                                     1999             1998
                                                 -----------      -----------
ADDITIONS:
   Investment income:
     Net appreciation in
      fair value of investments                  $13,548,410       $2,723,729
     Dividends and Interest                       11,095,039       17,261,782
     Net investment income from the General
      Motors Savings Plans Master Trust           18,320,479       18,798,618
   Interest on loans                               1,159,653        1,076,522
                                                  ----------       ----------

        Total investment income                   44,123,581       39,860,651
   Participants contributions:
     After tax                                     5,441,556        4,607,395
     Tax-deferred                                 20,477,040       17,645,374
     Rollover                                      1,042,653        1,072,918
                                                  ----------       ----------

        Total contributions                       26,961,249       23,325,687
                                                  ----------       ----------

     Total additions                              71,084,830       63,186,338
                                                  ----------       ----------
DEDUCTIONS:
   Benefits paid to participants                   6,777,104        7,448,722
   Forfeitures                                             -            1,536
                                                  ----------       ----------
        Total deductions                           6,777,104        7,450,258
                                                  ----------       ----------
NET INCREASE                                      64,307,726       55,736,080

NET ASSETS AVAILABLE FOR BENEFITS:
   Beginning of year                             231,736,539      176,000,459
                                                 -----------      -----------

   End of year                                  $296,044,265     $231,736,539
                                                 ===========      ===========




Reference should be made to the Notes to Financial Statements.





















                                      - 5 -

                         SATURN INDIVIDUAL SAVINGS PLAN
                             FOR REPRESENTED MEMBERS

                          NOTES TO FINANCIAL STATEMENTS

A.  PLAN DESCRIPTION

Saturn  Corporation  ("Saturn"),  a  wholly-owned  subsidiary of General  Motors
Corporation (the  "Corporation"),  established a defined  contribution plan, the
Saturn  Individual  Savings Plan for Represented  Members (the "Plan").  General
Motors Investment  Management  Corporation  ("GMIMCo")acts as the Plan fiduciary
and,  along with various  officers,  employees,  and  committees  with authority
delegated  by the  Plan  fiduciary,  controls  and  manages  the  operation  and
administration of the Plan subject to the provisions of the Employee  Retirement
Income Security Act of 1974, as amended  ("ERISA").  Assets of the Plan are held
by various  investment  managers  under the  direction  of State Street Bank and
Trust Company  ("Trustee").  The Plan provides eligible represented members with
tax-deferred and after-tax voluntary savings opportunities.  The following brief
description of the Plan is provided for general information purposes only. Refer
to the "Complete Text" of the Plan for a comprehensive description.

     Participation
     Eligibility  in the Plan is  restricted  to  regular  employees  of  Saturn
     compensated  fully or partly by salary  who are  represented  by the United
     Auto Workers  ("UAW") or other labor  organizations  which have adopted the
     Plan.  Employees who are classified as contract or leased employees are not
     eligible to participate. Eligible employees may participate in the Plan and
     accumulate savings as of the first day of employment. Employees on approved
     disability leaves of absence, or certain special leaves of absence,  remain
     eligible  to  accumulate  savings  for a period  of one year  while on such
     leaves.

     Participant Contributions
     Participants  direct the  investment  of their  contributions  into various
     investment  options  offered  by  the  Plan.   Participants  may  elect  to
     contribute to the Plan in several ways:

     o Participants  may  contribute  up  to  25%  of  Eligible  Earnings  on an
       after-tax   basis   whereby  the   contributions   are  included  in  the
       participant's  taxable income in the period of  contribution  ("After-Tax
       Savings").

     o Participants may contribute up to 25% of Eligible  Earnings,  or $10,000,
       whichever is less, on a tax-deferred basis, whereby the contributions are
       excluded  from the  participant's  taxable  income until such amounts are
       distributed to the participant from the Plan ("Tax-Deferred Savings").

     o Participants  may  elect  to  combine  the  above  contribution  methods,
       provided the contribution limitations noted above are not exceeded.

     o Participants  who have  transferred  to Saturn from  another  unit of the
       Corporation are allowed to transfer assets into the Plan from the General
       Motors Corporation Personal Savings Plan Trust.

     o Newly hired employees are permitted to make a rollover contribution equal
       to the  taxable  portion  of  cash  proceeds  received  from  a  previous
       employer's qualified savings plan ("Rollover Contributions").

     Description of Investment Options:

    General Motors  Corporation  Common Stock Funds:  $1-2/3 Par Value; Class H,
    $0.10  Par  Value -  Under  this  option,  participants'  contributions  are
    invested in General Motors common stock.

    Each  participant  directs  the  Trustee  how to vote  common  stock  shares
allocated to his or her account.  The Trustee  will not exercise  voting  rights
with respect to those shares for which a direction  has not been received by the
required deadline.



                                      - 6 -

                         SATURN INDIVIDUAL SAVINGS PLAN
                           FOR REPRESENTED MEMBERS
                  NOTES TO FINANCIAL STATEMENTS - Continued

    Assets  invested in the Common  Stock Fund are  expressed  in terms of units
    rather than shares of stock.  Each unit represents a proportionate  interest
    in all of the assets of the Common Stock Fund.  The number of units credited
    to a  participant's  account  will  be  determined  by  the  amount  of  the
    participant's contributions and the purchase price of a unit.

    Raytheon  Class A Common  Stock  Fund -  Effective  December  17,  1997,  GM
    spun-off  the  defense  electronics  business  of Hughes  Electronics,  a GM
    subsidiary ("Hughes Defense"), to holders of GM $1-2/3 par value and Class H
    common stock, which was immediately followed by the merger of Hughes Defense
    with Raytheon Company.  In connection with the above  transaction,  Raytheon
    Class A common stock was  distributed  to holders of the GM $1-2/3 par value
    and Class H common stocks.  Plan  participants  holding Class H Common Stock
    Fund units were allocated  approximately .81 units of Raytheon Class A units
    for each unit of GM Class H held.  Plan  participants  holding GM $1-2/3 par
    value  Common  Stock Fund units were  allocated  approximately  .08 units of
    Raytheon Class A units for each unit of GM $1-2/3 held. The determination of
    the allocation  ratio for units was based on the number of units held in the
    Plan.  Such  distribution  was  recorded  as a stock  dividend  and  totaled
    approximately  $314  million of which $172  million  and $142  million  were
    distributed  to $1-2/3  par  value  common  stockholders  and Class H common
    stockholders, respectively.

    Such distribution required the addition of the Raytheon Class A Common Stock
    Fund as an investment  option.  The Raytheon  Class A Common Stock Fund will
    remain as an  investment  option  through  December  31, 2002;  however,  no
    further  contributions or exchanges from any other  investment  options into
    the Raytheon  Class A Common Stock Fund will be permitted  during that time.
    Dividends,  if any, paid on Raytheon Class A common stock held by the Master
    Trust (see Note D) will be  invested  in an income  fund  investment  option
    prior to allocation to participants' accounts.

    Assets held in this fund are  expressed  in terms of units and not shares of
    stock. Each unit represents a proportionate interest in all of the assets of
    this  fund.  The value of each  participant's  account  is  determined  each
    business day by the number of units to the participant's credit,  multiplied
    by the current unit value. The return on a participant's investment is based
    on the value of units,  which, in turn, is determined by the market price of
    the Raytheon Class A common stock, the amount of any dividends paid thereon,
    and by interest earned on short-term investments held by the fund.

    Promark  Large Cap Index Fund - During  1999,  the name of the Equity  Index
    Fund was changed to the Promark  Large Cap Index  Fund.  Under this  option,
    participant  contributions  are  invested  in a portfolio  of common  stocks
    managed  by GMIMCo,  a  wholly-owned  subsidiary  of the  Corporation  and a
    party-in-interest.  The investment  manager  maintains a portfolio  which is
    designed to match the performance of the Standard and Poor's 500 Index. This
    Index is a  broad-based  index of large  companies  which  operate in a wide
    variety of industries and market sectors and which represent over two-thirds
    of the market  capitalization  of all publicly  traded  common stocks in the
    United States.

    Promark  Balanced  Fund - During  1999,  the name of the  Balanced  Fund was
    changed to the Promark Balanced Fund. Under this option,  contributions  are
    invested in equity and fixed income investments  selected from opportunities
    available in the entire global  capital  market,  including  large and small
    capitalization  common stocks,  investment and  non-investment  grade bonds,
    convertible  securities,  real  estate,  emerging  market  investments,  and
    venture capital, and may be issued by U.S. and non-U.S. issuers.




                                      - 7 -

                         SATURN INDIVIDUAL SAVINGS PLAN
                           FOR REPRESENTED MEMBERS
                  NOTES TO FINANCIAL STATEMENTS - Continued

    From  time  to  time,  investment  managers  may  use  derivative  financial
    instruments  including  forward  exchange  contracts and futures  contracts.
    Derivative  instruments  are used primarily to mitigate  exposure to foreign
    exchange  rate  and  interest  rate  fluctuations  as  well  as  manage  the
    investment  mix in the  portfolio.  The  Plan's  interest  in  funds,  which
    utilized such financial  instruments,  is not considered  significant to the
    Plan's financial statements.

    Delphi Common Stock Fund - On May 28, 1999,  the  Corporation  completed the
    spin-off of Delphi Automotive  Systems  ("Delphi").  In connection with that
    spin-off,  Delphi common stock was  distributed  to holders of GM $1-2/3 par
    value common stock.  Such  distribution  required the addition of the Delphi
    Common Stock Fund as an  investment  option.  Program  participants  holding
    units  in  the  GM  $1-2/3  Par  Value  Common  Stock  Fund  were  allocated
    approximately  .70 units in the Delphi  Common Stock Fund for each unit held
    in the GM $1-2/3 Par Value Common Stock Fund. Such distribution was recorded
    as a stock dividend, in which a total of $887 million of Delphi common stock
    was  distributed  to GM $1-2/3  par value  common  stockholders.  The Delphi
    Common Stock Fund will remain as an investment option;  however,  no further
    contributions or exchanges from any other investment  option into the Delphi
    Common Stock Fund will be permitted during that time.

    Assets held in this fund are  expressed  in terms of units and not shares of
    stock. Each unit represents a proportionate interest in all of the assets of
    this  fund.  The value of each  participant's  account  is  determined  each
    business day by the number of units to the participant's credit,  multiplied
    by the current unit value. The return on a participant's investment is based
    on the value of units,  which, in turn, is determined by the market price of
    Delphi  common  stock,  the amount of any  dividends  paid  thereon,  and by
    interest earned on short-term investments held by the fund.

    The above six options are included  under the General  Motors  Savings Plans
    Master Trust (See Note D).

    Promark  Income Fund - During 1999,  the name of the Income Fund was changed
    to the  Promark  Income  Fund.  Under this  option,  funds are  invested  in
    investment  contracts  issued by insurance  companies  and  short-term  U.S.
    Government debt  obligations.  The issuing  companies have agreed to provide
    this fund with a net fixed or floating  contract interest rate that is to be
    earned over a specified  period and payment of principal  and interest  upon
    participant initiated withdrawals and/or transfers of assets.

    The crediting  interest  rates,  fund  managers,  and contract  value of the
    investment  contracts at December 31, 1999 and 1998,  respectively,  were as
    follows:

         Interest Interest
         Rate     Rate
         as of    as of            Fund
         12/31/99 12/31/98        Manager               1999          1998
         --------  -----------------------------    ----------     ----------

         6.86%     6.86%   New York Life            $5,448,348     $5,101,449
         5.88%     5.88%   John Hancock Mutual Life 10,679,375     10,088,487
         6.28%     6.00%   John Hancock Mutual Life  8,625,138      8,122,654
         6.47%     6.00%   Metropolitan Life        32,231,771     18,696,335
                                                    ----------     ----------
                                                   $56,984,632    $42,008,925
                                                    ==========     ==========






                                      - 8 -

                         SATURN INDIVIDUAL SAVINGS PLAN
                           FOR REPRESENTED MEMBERS
                  NOTES TO FINANCIAL STATEMENTS - Continued

    The  contract  values of the  investment  contracts  approximate  their fair
    values at  December  31,  1999 and 1998.  The  average  yield on  investment
    contracts  for the  years  ended  December  31,  1999 and 1998 was 6.34% and
    6.37%, respectively.

    In 1999 and 1998,  investments were also made in short-term U.S.  Government
    debt  obligations and cash. At December 31, 1999 and 1998, the fair value of
    such  investments,  considered as the Fixed Income Fund,  was $6,710,380 and
    $4,427,712, respectively.

    Mutual Funds - This option is comprised of  forty-eight  (forty-seven  as of
    December 31, 1998) mutual funds managed by Fidelity  Investments.  (See Note
    C). Each fund has a different objective and investment  strategy.  To pursue
    their objectives, the fund managers invest in a wide variety of investments.
    Complete  information  about  each  fund's  objectives  and  investments  is
    contained in that fund's prospectus.

    Vesting

    Participant  contributions  vest  immediately.  Saturn  matched  participant
    contributions  were made through  January 1, 1992 and earnings  thereon vest
    fully  upon the  attainment  of five  years of  service,  death,  total  and
    permanent disability, or retirement.

    Distributions

    Participants may generally  withdraw their  Tax-Deferred  Savings after they
    reach age 59-1/2 or prior to age 59-1/2 for Financial  Hardship,  as defined
    in the Plan's  "Complete  Text".  After-Tax  Savings,  vested Saturn matched
    contributions,  and  related  earnings  may be  withdrawn  any  time  upon a
    participant's request. Upon termination of employment,  a final distribution
    of assets is made unless  termination is by retirement or the  participant's
    account exceeds $5,000. In those instances, the distribution may be deferred
    until April 1 of the year after the  participant  reaches the age of 70-1/2.
    Participants  who continue working beyond reaching the age of 70-1/2 are not
    required to begin distribution.

    There were no distributions  payable to participants  included in net assets
    available for benefits as of December 31, 1999 and 1998.

    Transfers

    Participants  may transfer  assets between  investment  options at any time,
    with certain limitations.

    Loans

    Participants may borrow once per calendar year from both their  Tax-Deferred
    and After-Tax  Savings assets.  The amount and term of the loans are limited
    under the Plan.  Loans bear a rate of  interest  equal to the prime  lending
    rate  as of  the  last  business  day of the  calendar  quarter  immediately
    preceding the date the participant gives appropriate direction for a loan to
    the Plan recordkeeper  (interest rates for outstanding loans at December 31,
    1999 ranged from 6% to 9%).  Interest  paid on the loans is credited back to
    the borrowing  participant's  account in the Plan. No earnings accrue to the
    assets  liquidated  for the loan.  At December  31, 1999 and 1998,  loans to
    participants were $15,353,396 and $13,779,219, respectively.







                                      - 9 -

                         SATURN INDIVIDUAL SAVINGS PLAN
                           FOR REPRESENTED MEMBERS
                  NOTES TO FINANCIAL STATEMENTS - Continued

    Termination of the Plan

    Although  it has not  expressed  any  intent to do so,  Saturn has the right
    under the Plan to terminate the Plan subject to the provisions of ERISA.  In
    the event of termination, partial termination, or complete discontinuance of
    contributions, the administrator may direct the Trustee to:

    o  continue to administer the Plan and pay account balances in accordance
       with the Plan's distribution policy described above, or

    o  distribute the assets remaining in the Plan in a lump sum to participants
       and beneficiaries in proportion to their respective account balances.



B.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Significant  accounting policies followed in the preparation of the accompanying
financial statements are as follows:

    o Investments are stated as follows:
       -  General  Motors  Savings  Plans  Master   Trust("Master   Trust")-  at
          estimated  market  prices  of  the  assets  in  the  Master  Trust  as
          determined by the investment manager.
       -  Investment  Contracts - at contract value, which consists of cost plus
          accumulated interest.
       -  Common/Collective  Trust - Fixed  Income  Fund - at  estimated  market
          prices  of the  assets  in the Fund as  determined  by the  investment
          manager.
       -  Mutual Funds - at quoted market value.
       -  Loans to participants - at cost, which approximates fair value.

    o  General  Motors common stock,  $1-2/3 par value,  acquired by the Trustee
       for the Plan may be obtained by  purchases on the open market or from the
       Corporation  by  subscription  or  purchase.  Such stock  acquired by the
       Trustee on the open market is credited to the  participants'  accounts at
       the  average  per  share  cost of  such  purchases  (excluding  brokerage
       commissions, transfer taxes, etc.) made for each month. Stock obtained by
       the Trustee  directly from the  Corporation is credited to  participants'
       accounts  either at the average per share cost to the Trustee of the open
       market  purchases of the stock  acquired  for a  particular  month or, in
       those  months in which the Trustee  acquires no stock on the open market,
       at the average of the daily mean high and low market  prices of the stock
       as reported on the Composite Tape of Transactions for such month.

    o  Securities transactions are recorded on the date the trades are executed.

    o  Net  appreciation  in value of  investments  held,  sold, or  distributed
       represents  the  change in the  market  value of the  Plan's  investments
       during the year.

    o  Investment income is recognized as earned.

    o  The  preparation  of financial  statements in conformity  with  generally
       accepted accounting  principles requires management to make estimates and
       assumptions  that affect the reported  amounts of assets and  liabilities
       and changes therein, and disclosure of contingent assets and liabilities.
       Actual results could differ from those estimates.

    o  Certain costs of Plan administration are paid by Saturn.

    o  Certain reclassifications have been made in the 1998 financial statements
       to conform to the classifications used in 1999.

                                     - 10 -

                         SATURN INDIVIDUAL SAVINGS PLAN
                           FOR REPRESENTED MEMBERS
                  NOTES TO FINANCIAL STATEMENTS - Continued

C.  INVESTMENTS

The table below  details the  investment  managers,  the  investment  types (and
interest rates at December 31, 1999) and the carrying value of investments as of
December 31, 1999 and 1998.


Investment Manager         Investment Type           1999           1998
- --------------------   -----------------------   ------------   ------------

State Street Bank      Value of Interest in the
  and Trust            Commingled Accounts of the
                       General Motors Savings
                       Plans Master Trust       $101,775,547*   $87,724,172*
                                                 -----------     ----------

Fidelity               Magellan                   25,396,609*    18,946,251*
Fidelity               Contrafund                 39,080,309*    32,195,883*
Fidelity               Other Mutual Funds         50,743,392**   32,654,377**
                                                  ----------     ----------
           Total mutual funds                    115,220,310     83,796,511
                                                  ----------     ----------
State Street Bank
  and Trust            Fixed Income Fund           6,710,380      4,427,712
                                                  ----------     ----------

Loans to Participants  6% to 9%                   15,353,396*    13,779,219*
                                                  ----------     ----------

New York Life          Investment Contract, 6.86%  5,448,348      5,101,449

John Hancock
  Mutual Life          Investment Contract, 5.88% 10,679,375     10,088,487

John Hancock
  Mutual Life          Investment Contract, 6.28%  8,625,138      8,122,654
Metropolitan Life      Investment Contract, 6.47% 32,231,771*    18,696,335*
                                                  ----------     ----------

           Total Investment Contracts             56,984,632     42,008,925
                                                  ----------     ----------

           TOTAL                                $296,044,265   $231,736,539
                                                 ===========    ===========


* Represents 5% or more of Plan assets.

**  Represents  the total of  forty-six  (forty-five  as of December  31,  1998)
individual mutual funds managed by Fidelity Investments, none of which exceed 5%
or more of Plan assets.















                                     - 11 -

                         SATURN INDIVIDUAL SAVINGS PLAN
                           FOR REPRESENTED MEMBERS
                  NOTES TO FINANCIAL STATEMENTS - Continued


D.  THE MASTER TRUST

As of December 21, 1994, the  Corporation  established the Master Trust pursuant
to a trust agreement among the Corporation, Saturn Corporation, and State Street
Bank and Trust,  as trustee of the funds,  in order to permit the commingling of
trust assets of several employee benefit plans for investment and administrative
purposes.  The  assets of the  Master  Trust are held by State  Street  Bank and
Trust.

Employee benefit plans participating in the Master Trust include the following:

o   General Motors Savings-Stock Purchase Program for Salaried Employees in
    the United States
o   General Motors Personal Savings Plan for Hourly-Rate Employees in the
    United States
o   Saturn Individual Savings Plan for Represented Members


The Master Trust is composed of seven master trust  investment  options:  the GM
$1-2/3 Value Common Stock Fund, the Raytheon Class A Common Stock Fund, GM Class
H, $.10 Par Value  Common  Stock Fund,  the EDS Common  Stock Fund,  the Promark
Large Cap Index,  the Delphi Common Stock Fund, and the Balanced  Fund.  Each of
these investment  options that are available under the Plan is described in Note
A. The EDS Common Stock Fund is not an investment option that is available under
the Plan. Each participating  employee benefit plan has an undivided interest in
the net assets and changes  therein of the  applicable  Master Trust  investment
options.

The net  investment  income  of each of the  Master  Trust  investment  funds is
allocated  by the  trustee  to each  participating  plan  based  on that  plan's
interest in each  Master  Trust  investment  fund,  as  compared  with the total
interest in each Master Trust investment fund of all the participating  plans at
the beginning of the month.

The  Plan's  share of the total  Master  Trust is  summarized  as  follows as of
December 31, 1999 and 1998:
                                                   1999           1998
                                                   ----           ----

Value of interest in Master Trust              $101,775,547  $87,724,172
                                                -----------   ----------
Percentage of total Master Trust                      1.06%        0.92%
                                                 ----------   ----------
Value of interest in the net investment
  income from Master Trust accounts             $18,320,479  $18,798,618
                                                 ----------   ----------
Percentage of total Master Trust net
  investment gain                                     0.70%        0.98%
                                                 ----------   ----------

On April 12, 1999, the  Corporation's  Board of Directors  approved the complete
separation  of Delphi by means of a  spin-off,  which was  completed  on May 28,
1999. Prior to the spin-off, the Corporation established the Delphi Savings Plan
Master Trust ("Delphi Master Trust"), modeled after the Master Trust. On May 28,
1999, assets representing Delphi participants' holdings in the Master Trust were
transferred and reinvested  under the  corresponding  investment  options in the
Delphi Master Trust. The total amount transferred to the Delphi Master Trust was
$1.3  billion.  As a result  of the  separation,  the  Delphi  Master  Trust was
separated from the Master Trust, and is now administered by Delphi as a separate
trust.





                                     - 12 -

                         SATURN INDIVIDUAL SAVINGS PLAN
                           FOR REPRESENTED MEMBERS
                  NOTES TO FINANCIAL STATEMENTS - Continued

The  net  assets  available  for  benefits  of all  participating  plans  in the
commingled  accounts  of the  Master  Trust at  December  31,  1999 and 1998 are
summarized in thousands as follows:

                                                   1999          1998
                                                   ----          ----
ASSETS
    Investments, at fair value:
       Common Stock:
          General Motors $1-2/3 par value        $4,180,214   $4,403,246
          General Motors Class H, $0.10 par value   570,679      500,474
          EDS Common Stock Fund                     277,729      356,304
          Raytheon Class A Common Stock Fund         92,900      267,580
          Delphi Common Stock Fund                  553,312            -
          Other                                           -       20,835
       U.S. Government Securities                         -        1,696
       Common and Collective Trusts               3,943,926    3,901,275
       Cash                                               -       27,252
                                                  ---------    ---------
          Total investments                       9,618,760    9,478,662

    Receivables:
       Due from broker for investments sold               -       21,444
       Accrued investment income                        249        4,979
                                                  ---------    ---------

          Total receivables                             249       26,423
                                                  ---------    ---------

          Total assets                            9,619,009    9,505,085
                                                  ---------    ---------
LIABILITIES:
    Due to broker for securities purchased             (345)      (1,627)
                                                  ---------    ---------

Net assets available for benefits                $9,618,664   $9,503,458
                                                  =========    =========


The net investment income of all participating  plans in the commingled accounts
of the Master Trust for the years ended December 31, 1999 and 1998 is summarized
in thousands as follows:

Interest                                         $    2,369   $    3,993
                                                   --------    ---------
Dividends                                            31,009      132,901
                                                   --------    ---------
Stock dividend                                      886,886            -
                                                   --------    ---------
Net appreciation in fair value of investments:
    Common stocks                                   946,353      923,472
    U.S. Government securities                            -          603
    Common and collective trusts                    743,798      843,052
    Registered investment company                    10,632        8,200
                                                   --------    ---------
       Total net appreciation in fair value
          of investments                          1,700,783    1,775,327
                                                  ---------    ---------
       Total investment income                    2,621,047    1,912,221


Transfer to Delphi                               (1,275,480)           -

Net Transfers to Participating Plans             (1,230,361)    (910,630)
                                                  ---------    ---------
Net Increase                                      $ 115,206   $1,001,591
                                                  =========    =========




                                     - 13 -

                         SATURN INDIVIDUAL SAVINGS PLAN
                           FOR REPRESENTED MEMBERS
                  NOTES TO FINANCIAL STATEMENTS - Concluded

E.  FEDERAL INCOME TAXES

The Plan was  submitted  to the  Internal  Revenue  Service  and has  received a
favorable   determination  as  to  its  tax-qualified   status  in  meeting  the
requirements of Sections 401(a) and 401(k) of the Internal Revenue Code of 1986,
as amended ("Code"), and the trust established thereunder has been determined to
be exempt from United States  federal  income taxes under Section  501(a) of the
Code.

The United States  federal income tax status of the employee with respect to the
Plan is described (1) in the "Complete  Text" of the Plan, and (2) included with
the   confirmation   letters  sent  to  the   participant  for  withdrawals  and
distributions of assets.

F.  SUBSEQUENT EVENT

Effective April 1, 2000, sixteen new Promark funds, three new Fidelity funds and
two other mutual funds were added as Plan investment options.





                                 * * * * * *








































                                     - 14 -







                  SATURN INDIVIDUAL SAVINGS PLAN
                     FOR REPRESENTED MEMBERS

         SCHEDULE OF ASSETS HELD FOR INVESTMENT PURPOSES
                     AS OF DECEMBER 31, 1999
Column A    Column B          Column C                           Column D
- ---------   ----------------  --------------------------------   ----------
            Identity of
            Issue, Borrower,
            Lessor, or                                            Current
            Similar Party     Description of Investment            Value
- ---------   ----------------  --------------------------------  -----------

     *     State Street Bank  Value of Interest in the         $101,775,547
             and Trust          Commingled Accounts of the      -----------
                                GM Savings Plans Master Trust


     *     State Street Bank  Fixed Income Fund
             and Trust                                            6,710,380
                                                                -----------
                               Mutual Funds:
     *     Fidelity              Magellan                        25,396,609
     *     Fidelity              Puritan                          8,159,706
     *     Fidelity              Contrafund                      39,080,309
     *     Fidelity              Asset Manager                    2,426,214
     *     Fidelity             Capital Appreciation                316,439
     *     Fidelity              Retirement Growth                  727,722
     *     Fidelity              Value                              610,132
     *     Fidelity              Small Cap Stock                    231,421
     *     Fidelity              Fifty                              767,956
     *     Fidelity              OTC Portfolio                    1,633,151
     *     Fidelity              Capital & Income                    61,175
     *     Fidelity              Stock Selector                     322,952
     *     Fidelity              Disciplined Equity                 112,182
     *     Fidelity              Growth Company                   3,250,760
     *     Fidelity              Dividend Growth                  2,472,697
     *     Fidelity              Trend                               84,881
     *     Fidelity              Blue Chip Growth                 6,341,260
     *     Fidelity              Fidelity Fund                    1,592,810
     *     Fidelity              International Growth & Income      292,660
     *     Fidelity              Equity Income                      982,344
     *     Fidelity              Equity Income II                 1,225,487
     *     Fidelity              Real Estate Investment              71,441
     *     Fidelity              Utilities                          535,530
     *     Fidelity              Worldwide                          331,289
     *     Fidelity              Canada                              28,671
     *     Fidelity              Diversified International          604,756
     *     Fidelity              Pacific Basin                    1,389,545
     *     Fidelity              Growth & Income                  3,022,121
     *     Fidelity              Europe                             695,858
     *     Fidelity              Overseas                           703,381
     *     Fidelity              Asset Manager Growth               301,322
     *     Fidelity              Convertible Securities             101,920
     *     Fidelity              Balanced                           321,496
     *     Fidelity              International Bond                  33,263
     *     Fidelity              Investment Grade                   127,425
     *     Fidelity              Government Income                  276,127
     *     Fidelity              Freedom Income                     210,397
     *     Fidelity              Freedom 2000                        78,988
     *     Fidelity              Freedom 2010                       422,583
     *     Fidelity              Freedom 2020                       744,165
     *     Fidelity              Freedom 2030                       124,484
     *     Fidelity              Aggressive Growth                8,078,021

                              - 15 -

                  SATURN INDIVIDUAL SAVINGS PLAN
                     FOR REPRESENTED MEMBERS

         SCHEDULE OF ASSETS HELD FOR INVESTMENT PURPOSES
               AS OF DECEMBER 31, 1999 - Concluded


Column A   Column B           Column C                           Column D
- ---------  ----------------   ------------------------------    ----------
           Identity of
           Issue, Borrower,
           Lessor, or                                              Current
           Similar Party      Description of Investment             Value
- ---------  -----------------  ------------------------------     ----------

     *     Fidelity              Asset Manager Income                14,633
     *     Fidelity              Global Balance                      62,754
     *     Fidelity              Mid Cap Stock                      346,769
     *     Fidelity              Low Priced Stock                   218,266
     *     Fidelity              Export & Multinational             268,758
     *     Fidelity              New Market Income                   17,480
                                                                -----------

                                  Total Mutual Funds            115,220,310
                                                                -----------

                              Loan Fund 6% to 9%                 15,353,396


           New York Life      Investment Contract, 6.86%          5,448,348
           John Hancock
             Mutual Life      Investment Contract, 5.88%         10,679,375
           John Hancock
             Mutual Life      Investment Contract, 6.28%          8,625,138
           Metropolitan Life  Investment Contract, 6.47%         32,231,771
                                                                 ----------

                                Total Investment
                                  Contracts                      56,984,632
                                                                 ----------
Total Assets Held for Investment                               $296,044,265
                                                                ===========


* Indicates party-in-interest






















                              - 16 -