Like the 2006 BMW M Coupe’s underhood hardware, the suspension is also significantly tweaked by BMW Motorsport. In front, the suspension track is half an inch wider, the aluminum lower control arms are more complex and lighter, new steering knuckles produce sharper response and save weight, and there are strut tower braces to further stiffen the car. At the rear, the sub-frame is larger and stiffer, and the M Coupe gets the M3’s wheel bearings, central suspension links, and stabilizer bar arrangement. Additionally, the springs, shocks, stabilizer bars, and bushings are all M-tuned for maximum performance.