2001 BMW 3 Series 325i Rwd 4dr Sedan (2.5L 6cyl 5M)
Bought the car new 6 years ago. Only had one problem: driver's window came off track. Fixed at no charge. Very satisfied. To have this level of performance (~6 second 0-60mph) and still get 30+ mpg on the highway at 75 mph is outstanding.
Performance and luxury combination best in class.
Better stereo; and can't upgrade it due to proprietary BWM electronics (silly idea).