in the coming months. An employee buyout and early retirements eliminated the need for layoffs. Years Product Numbers Produced 1966-1970 Chevrolet Caprice , Impala , Bel Air 453,086 1967-1969 Pontiac Firebird 220,230 1971-1977 Chevrolet Vega 1,966,157 (note:includes additional '73-'74 GM of Canada production) 1971-1994 Chevrolet Van 1,948,468 1971-1994 GMC Vandura 423,547 1975-1977