Mac Miller 
2003 BMW M5 Sedan 4dr Sedan (4.9L 8cyl 6M)
If you want only one car...
 The M5 concept isn't new to Americans. Stick a big V8 in a mid-sized car and beef up the chassis. Pontiac GTO, Plymouth Road Runner, The Bluesmobile...but the M5 is the full development of the concept.  It's fast, roomy, comfortable, fun to drive, gets great gas mileage on the highway (25mpg +/- ), and gets lots of comments from strangers.  People know what an M5 is and respect the car for what it is.  I stopped at an out-of-town BMW dealer to buy a quart of oil and was asked by them to sell my M5 to them!         