Top speed is cut off by the engine's electronic control unit at 250 km / h or 155 mph. (press.bmwgroup.com)
To mention but one area, the vast variety of perfectly tuned electronic control units improving safety and security as well enhancing comfort, did fill a complete list. (rrab.com)
This system ties together the brakes, steering components, powertrain, and suspension systems into a single cohesive electronic control unit. (topspeed.com)