US: 2005 Ford GT
I didn't grow up a car guy... I was 20 before I really got into them, so I prefer modern performance over nostalgia usually. Plus, this is the only car that white (with the blue stripes) would be my first color choice.
Japan: 1972 Bondurant Datsun 240Z
Okay I lied. Some cars simply can never overcome the sheer appeal of the original. If I ever get the chance to rebuild/restore a car just because I think it's cool, it will probably be a 240Z.
UK: 2000 Prodrive Subaru Impreza STi P1 edition
For some reason I always liked the P1 better than the 22b, despite it having less all-around performance. I guess the uber-rare halo care status of the 22b makes the P1 more "real" to me or something. Regardless, the P1 could not have been made any better for it's purpose- driving around the UK at criminal speeds on mostly terrible roads.
Germany: BMW 850ci
This is what you get when you build an SVX for BMW buyers. Even without a manual, this car is bad ass.
Europe: 2002 Ferrari 575M Maranello
If I could have one car, free of charge, I'd probably pick this one. It doesn't have the sheer performance of the GT or a 911 or a 360 Modena, but I'd want it for an everyday use car where 10/10ths doesn't matter anyway. It's my favorite Gran Turismo. And, Ferrari is the only marque where red would be my first color choice.