I'm caught up with Group A fever at the moment, so my choice of three would be:
R32 GT-R:
Ford Sierra Cosworth RS500:
HSV VL Walkinshaw:
All with mild mods done to them (suspension, brake, intake/exhaust mods etc), would suit me fine.
Bit plain compared to some of the other cars listed here, but right now I'd be more than happy to have all three sitting next to each other in the garage.
At least I own one, so thats only two I have to dream about