Looks like
BMW CA calls it:
BMW Performance chassis
http://www.bmw.ca/ca/en/owners/acces...e_chassis.html
BMW Performance chassis.
For an enthusiast's feel for the road.
BMW Performance chassis.
For an enthusiast's feel for the road.
BMW Performance wheels and the braking system have a remarkably low weight, which affects in particular the vehicle's unsprung mass, and, as a direct result, its driving dynamics. It is not just the light-alloy wheels' clear, focussed design that lends them their appeal. The cut-away design of the join between spokes and rim allows more air to get to the BMW Performance brakes, ensuring they work with maximum efficiency even at high temperatures. The BMW Performance chassis transmits the passion for extremely dynamic response directly from the vehicle straight to the driver – with firm settings for springs, dampers and stabilizers configured for an uncompromisingly sporty style of driving.