I own a bunch of 240s, so I have to go American and Euro here.
American: (two choices here)
1.) Corvette ZR-1, the ultimate American car. Only nazis don't like ZR-1's.
2.) 1994-1996 Cadillac Fleetwood Brougham, comes from the factory with an LT1 Corvette engine (260hp, 335lb/ft, easy to mod), RWD. Impala SS Suspension and Brakes bolt right on. The ultimate long haul road trip car.
European:
No tie here, just one easy choice. BMW 3.0 CSL, the classiest car ever to come out of Germany: