2011 Mercedes-Benz E-Class E550 4dr Sedan (5.5L 8cyl 7A)
My 4th Mercedes. I love it. Made the mistake of trading my '08 in on a 2011 BMW 535i. It was a dog! Traded back to 2011 Mercedes E550 Sport. No comparison. E550 more luxurious, just as sporty, better styling, much more comfortable, motor is much smoother, and transmission shifts much much smoother.
Smooth V8 with lost of low end torque. Silky smooth shifting transmission. Great styling. Dynamic driver's seat. Comfortable ride.
Make Parktronic (at least front and rear proximity sensors) standard.