Martin 
2010 BMW 5 Series Sedan 550i 4dr Sedan (4.8L 8cyl 6M)
2010 550i M Sport - It growls
 I also own a 2000 540i. So my expectations of the 2010 550i were pretty high. It had to be the same or better. My expectations have been met. It's carbon black with cream interior includes all the M sport trims you can get. It's an excellent vehicle and fun to drive. If my wife asks me to get milk and eggs, I'll do it 2 trips. The vehicle with it's 19" wheels rides on rails, a notable growl can be expected from the mufflers after 4000rpm. Surprisingly smooth suspension. Has many hidden features not all described in the brochure. As with my older one, it's 10 years ahead of its time. 