All models also received aluminum suspension components for reduced weight and improved performance. (driving.ca)
A sophisticated limited - slip differential was part of the program, as were aluminum suspension arms and brakes with four - channel ABS. (automobilemag.com)
Underpinning the M3 and M4 will be a common chassis boasting unique track widths, forged aluminum suspension components and a rear axle supported by a new steel carrier that, unlike that of the old M3, is bolted directly to the body, without the use of traditional rubber bushings. (autoweek.com)