I am getting to play with quite a few of the new cars right now. Historically my favourites have to be...
Vauxhall Senator 24v. Bl**dy wonderful cars.

Saab 9000, especially the very rare 2.3 Carlsson. Not super quick off the mark, but once you get traction it is ridiculously fast and really made you hang on! Needed modified suspension setup to handle remotely well and had the disadvantage of fwd, but a brilliant powerplant (and seriously tuneable!)
Montego MG Turbo. Afwul handling, turbo boost that was like flicking a switch and an ugly car.... but it was real fun to drive.
Citroen BX 1.9 16v (Phase 1 pre 1989). Without doubt the best handling fwd car I have ever driven!
People may slate the hydropneumatic system but in that car, when it was working properly, gave amazing levels of grip and brakes that stopped like nothing else!
The engine was gutless below 4k rpm, but between there and 7.5k (redline) it was seriously quick and made rather a good noise for a 4 pot.
I may well seek out one as a weekend fun car in the new year...
Oh, and the new 9-3 diesel is rather nice.
