2006 BMW 5 Series 530xi 4dr Sedan AWD (3.0L 6cyl 6M)
I've owned this car for 2 years and a 740IL previously. This car handles very well, rides very comfortably and can handle my 6'3" frame easily. The 28+MPG highway is a great deal with $4+ gas. I find the I-drive OK, but would prefer manual controls for heat/AC and radio. I-drive is good for navigation and communications. I find the brake dust excessive and pits the rims if not removed quickly (my rims are waxed for protection).
Performance. This car will move smoothly. The problem is you can be doing 90-100 MPH without realizing it.
Better cup holders. Sun glass holder. Manual controls for radio and heat/ac. Darker rear windows.