2008 BMW 5 Series 535i 4dr Sedan (3.0L 6cyl Turbo 6M)
Traded in my 04 545i for the new 535i. Wow! I can't say enough about how much they have improved this model. It is faster, quieter, smoother, and handles better than my 545, for less money! BMW has also made subtle changes to the interior that make the car feel more luxurious (more wood and leather in the right places). I would highly recommend this car.
The new twin turbo engine is very smooth and powerfull. The iPod integration is a great additon. Base car without the sports package handles extremely well at high speeds without sacrificing ride quality or luxery feel. BMW free 4 year maintenance is a big financial advantage over Mercedes.