8. Buick GNX
The Buick GNX gave American muscle an innovative twist with its turbocharged V6, setting it apart from the typical V8 crowd. Below 3,000 rpm, turbo lag was evident, giving the GNX an almost docile character—until the boost hit. Once the turbo spooled up, the Regal-based sleeper transformed into a true drag-strip menace, surprising unsuspecting rivals with a tidal wave of torque. This dramatic power delivery is a big part of what makes driving a GNX so memorable and exciting. More on the Buick GNX.