well, here are some other nice options becides the obvious f-body
86-87 Buick Grand National (or T-type)
1990 Nissan 300ZX (twin turbo if you like)
94-96 Chevy Impalla SS
Caddy STS (northstar of course)
Early 90's BMW 8-series (don't see too many of these)
92-94 Ford Taurus SHO (next on my list for a beater car)