1 9 8 1 , ▁the ▁C ut lass ▁Supreme ▁cou pe ▁received ▁an ▁aer od ynamic ▁rest yle ▁( with ▁a ▁" sh ov el - n ose " ▁front ▁header ▁panel ), ▁which , ▁along ▁with ▁a ▁higher ▁rear ▁deck , ▁decre ased ▁air ▁resistance ▁by ▁ 1 5 %. ▁It ▁would ▁continue ▁with ▁this ▁basic ▁design ▁until ▁the ▁final ▁rear - drive ▁C ut lass ▁was ▁produced ▁in ▁ 1 9 8 8 . ▁A ▁ 4 - door ▁sedan ▁was ▁added ▁to ▁the ▁Supreme ▁line up , ▁with ▁a ▁new ▁front ▁end ▁and ▁a ▁slight ▁ta ill ight ▁l ens ▁rest yle ▁( res emb ling ▁a ▁touch - t one ▁d ial ▁or ▁Rub ik ' s ▁C ube ▁- ▁this ▁l ens ▁style ▁was ▁used ▁until ▁ 1 9 8 4 ). ▁ ▁It ▁was ▁this ▁rest y led ▁body ▁that ▁( al ong ▁with ▁the ▁Che v ro let ▁Monte ▁Carlo , ▁Bu ick ▁Reg al , ▁and ▁Pont iac ▁Grand ▁Prix ) ▁us her ed ▁in ▁the ▁down - s ized ▁cars ▁into ▁NAS C AR ▁cup ▁competition . ▁ ▁While ▁the ▁C ut lass ▁looked ▁almost ▁identical ▁to ▁the ▁Bu ick ▁Reg al ▁( which ▁scored ▁ 3 5 + ▁vict ories ▁in ▁the ▁ 1 9 8 1 ▁th ru ▁ 1 9 8 5 ▁seasons ), ▁the ▁C ut lass ▁( like ▁the ▁D odge ▁Mir ada ) ▁didn ' t ▁take ▁one ▁check ered ▁flag , ▁and ▁many ▁teams ▁moved ▁away