▁ 1 9 8 0 , ▁a ▁high - per formance ▁ 4 4 2 ▁model ▁was ▁available , ▁and ▁for ▁ 1 9 7 9 ▁( C ut lass ▁Cal ais ), ▁a ▁special - ed ition ▁performance ▁model , ▁the ▁Hur st / Old s ▁was ▁offered . ▁These ▁used ▁the ▁Supreme ' s ▁not ch back ▁body , ▁rather ▁than ▁the ▁standard ▁fast back ▁cou pe ' s . ▁ ▁Ar ound ▁ 2 , 4 9 9 ▁Hur st / Old s ▁were ▁produced ▁- ▁all ▁were ▁power ed ▁with ▁an ▁Old sm obile ▁ 5 . 7 L ▁( 3 5 0 ▁cub ic - inch ) ▁Ro cket ▁V 8 ▁( not ▁the ▁dies el ▁engine ) ▁s our ced ▁from ▁the ▁full - s ized ▁D elta ▁ 8 8 ▁and ▁Nin ety ▁E ight ▁Reg ency . ▁Also ▁included ▁in ▁the ▁Hur st / Old s ▁package ▁was ▁the ▁Hur st ▁D ual / G ate ▁sh if ter ▁for ▁the ▁three - speed ▁Tur bo ▁H yd ra - m atic ▁transmission . ▁ ▁In ▁ 1 9 7 8 , ▁the ▁C ut lass ▁line ▁featured ▁ta ill ights ▁which ▁had ▁a ▁light ed ▁ ▁Old sm obile ▁ro cket ▁logo ▁in ▁the ▁center . ▁ ▁In ▁ 1 9 7 9 , ▁the ▁ta ill ights ▁on ▁the ▁C ut lass ▁line ▁dropped ▁the ▁ro cket ▁logo . ▁ ▁In ▁ 1 9 8 0 , ▁the ▁two - door ▁models ▁went