Luxury Car: BMW (Any of the Higher Class Series)
Sports Car: New Nissan Infiniti's..Not sure if it's considered a sports car.
SUV: Not big on SUV's...I guess a Hummer
Supercar: Check this thread for the Ultimate in Sports Cars..
Here Or a 64 AC Shelby Cobra
Family Car (cheap): Honda Civic Coupe
Family Car (rich): 300M Series