<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AND CONSOLIDATED INCOME STATEMENT OF GATX AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                             105
<SECURITIES>                                         0
<RECEIVABLES>                                    1,369
<ALLOWANCES>                                       109<F1>
<INVENTORY>                                          0
<CURRENT-ASSETS>                                     0<F2>
<PP&E>                                           5,570
<DEPRECIATION>                                   2,104
<TOTAL-ASSETS>                                   6,267
<CURRENT-LIABILITIES>                                0<F2>
<BONDS>                                          3,588<F3>
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            35
<OTHER-SE>                                         802
<TOTAL-LIABILITY-AND-EQUITY>                     6,267
<SALES>                                              0
<TOTAL-REVENUES>                                   652
<CGS>                                                0
<TOTAL-COSTS>                                       83<F4>
<OTHER-EXPENSES>                                   159<F5>
<LOSS-PROVISION>                                     4
<INTEREST-EXPENSE>                                 113
<INCOME-PRETAX>                                    117<F6>
<INCOME-TAX>                                        47
<INCOME-CONTINUING>                                 70
<DISCONTINUED>                                      12
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                        82
<EPS-BASIC>                                       1.71
<EPS-DILUTED>                                     1.68
<FN>
<F1>RECEIVABLES CONSIST OF THREE COMPONENTS: TRADE ACCOUNTS OF 116 MILLION, FINANCE
LEASES OF 748 MILLION, AND SECURED LOANS OF 505 MILLION.
<F2>NOT APPLICABLE BECAUSE GATX HAS AN UNCLASSIFIED BALANCE SHEET.
<F3>BONDS CONSIST OF THREE COMPONENTS: RECOURSE LONG-TERM DEBT OF 2,900 MILLION,
NONRECOURSE LONG-TERM DEBT OF 518 MILLION, AND CAPITAL LEASE OBLIGATIONS OF 170
MILLION.
<F4>THIS VALUE REPRESENTS OPERATING EXPENSES ON THE CONSOLIDATED STATEMENTS OF
INCOME.
<F5>THIS VALUE REPRESENTS THE PROVISION FOR DEPRECIATION AND AMORTIZATION ON THE
CONSOLIDATED STATEMENTS OF INCOME.
<F6>THIS VALUE REPRESENTS INCOME BEFORE INCOME TAXES.
</FN>