ave en ▁interior ▁and ▁featured ▁power ▁windows ▁and ▁seat ▁controls ▁as ▁part ▁of ▁its ▁equipment . ▁Standard ▁Super ▁equipment ▁included ▁fo am ▁rub ber ▁seat ▁c ush ions , ▁automatic ▁tr unk ▁lamp , ▁Red ▁Lin er ▁speed ometer , ▁glo ve box ▁lamp , ▁dual ▁horn s , ▁trip ▁mile age ▁indicator , ▁direction al ▁signals , ▁dual ▁sun sh ades , ▁color ▁coordin ated ▁dash ▁panel , ▁and ▁on ▁the ▁convert ible , ▁outside ▁left - hand ▁rear view ▁mirror . ▁The ▁ 4 - door ▁p illa red ▁sedan ▁body ▁style ▁was ▁gone . ▁Engine ▁disp lacement ▁was ▁increased ▁to ▁ ▁on ▁the ▁N ail head ▁V 8 . ▁Nevertheless , ▁sales ▁fell ▁to ▁ 7 0 , 2 5 0 , ▁the ▁lowest ▁level ▁with ▁the ▁exception ▁of ▁the ▁abbre vi ated ▁ 1 9 4 2 ▁model ▁year . ▁ ▁The ▁once ▁most ▁popular ▁Bu ick ▁line ▁was ▁reduced ▁to ▁two ▁body ▁styles ▁for ▁ 1 9 5 8 ▁with ▁the ▁elim ination ▁of ▁the ▁convert ible . ▁Side ▁trim ▁was ▁similar ▁to ▁less er ▁series , ▁except ▁for ▁the ▁Super ▁letter ing ▁on ▁the ▁rear ▁f ender ▁flash es , ▁but ▁Sup ers ▁were ▁longer ▁than ▁the ▁Series ▁ 4 0 ▁Spe ci als ▁and ▁Series ▁ 6 0 ▁Cent ur ys . ▁The ▁Super ▁name ▁was ▁also ▁letter ed ▁across ▁the ▁deck ▁lid . ▁Standard ▁equipment ▁included ▁Variable - P itch ▁D yna flow , ▁power ▁ste ering , ▁power ▁bra kes , ▁a ▁safety -