enz ▁AM G ▁SL - Class . ▁ ▁The ▁X LR - V ▁used ▁the ▁same ▁super charg ed ▁North star ▁V 8 ▁as ▁the ▁ST S - V , ▁though ▁output ▁was ▁down ▁somewhat . ▁For ▁the ▁X LR - V , ▁the ▁engine ▁was ▁cert ified ▁by ▁the ▁S AE ▁to ▁produce ▁ 4 4 3   hp ▁( 3 3 0   k W ) ▁and ▁ 4 1 4   lb · ft ▁( 5 6 1   N · m ). ▁The ▁super char ger ▁and ▁four ▁inter co ol er ▁cores ▁were ▁built ▁into ▁the ▁int ake ▁manifold . ▁A ▁six - speed ▁automatic ▁transmission , ▁larger ▁bra kes ▁from ▁the ▁Z 5 1 ▁Cor v ette , ▁and ▁ 1 9 - inch ▁whe els ▁were ▁used . ▁ ▁The ▁X LR - V ▁could ▁acceler ate ▁to ▁ 6 0   m ph ▁( 9 6   km / h ) ▁in ▁ 4 . 6 ▁seconds ▁according ▁to ▁Car ▁and ▁Driver ' s ▁tests . ▁The ▁magazine ▁also ▁tim ed ▁it ▁at ▁ 1 1 . 3 ▁seconds ▁to ▁ 1 0 0   m ph ▁( 1 6 1   km / h ) ▁and ▁recorded ▁a ▁ 1 3 . 0 ▁second ▁quarter ▁mile ▁at ▁ 1 1 0   m ph ▁( 1 7 7   km / h ). ▁Its ▁top ▁speed ▁was ▁electron ically ▁limited ▁to ▁ 1 5 5   m ph ▁( 2 4 9   km