Regal and Grand National (late 80s models) had 3.8L turbo V6s, and the Typhoons & Syclones had 4.3L turbos. The Syclone was a GMC S-15 truck with ground effects and suspension improvements to go with the power. The Typhoon was the GMC S-15 Jimmy with the same deal.

If I remember correctly, the 87 Buick GNX (Grand National) was the fastest American production car that year. [img]images/graemlins/shocked.gif[/img] [img]images/graemlins/cool.gif[/img]