2008 BMW 5 Series 535xi 4dr Sedan AWD (3.0L 6cyl Turbo 6M)
Having owned 3 Porsches, a CL600 MB, and various other cars I can honestly say this is the best car I've owned. The car is quick and seamlessly fast especially in the sport mode. The electronics are all integrated and I found the much maligned iDrive to be easy to use. The ride is superb and I would easily say it rides as well as the Lexus LS 460 which I test drove. Living in the Northeast I anticipate the x drive will be invaluable. I've already tested the car on wet pavement and it pulls beautifully thru turns without the concern of the rear end going out that the Porsche is known for.
The twin turbo in line 6. Nice torque at low rpms.