In no particular order:
BMW Z8 - 400hp 5.0ltr V8 (0-60 in 4.6/top speed 155)
BMW M3 GTR - 350hp 4.0litr V8 (basically a street legal version of their race car)
Audi S3 Quattro - 225hp 4 cyl. turbo (size and weight of a golf, awd, test drove one 2 weeks ago
) -not sold in America
Audi RS6 - 450bhp V8 (0-60 in 4.9/top speed 152) -available as a wagon or sedan - HELLUVA family car