I've been driving a 2010 550i with the M sport package. I'm familiar with the suspension, and was wondering if others can compare it to the 2010 650i with the sport suspension. The 650i brochure for MY2010 says that every car regardless of sport package has sport suspension. The MY2010 550i brochure says that a 550i with M sport has retuned sport suspension. How do they compare? The vibe I'm getting is that the 5 series is more aggressive especially with M sport where even a 6-series sport is going for the relaxed vibe.