Upgraded springs, struts and antiroll bars, as well as bigger brakes and lighter alloy wheels, round out the road-holding package.

WSJ: 2013 Honda Civic EX Review: Back to Where It Once Belonged | Rumble Seat by Dan Neil

This uses hydraulic actuators attached to the antiroll bars that crank into action against the natural tendency of the car to flex from side to side in a turn.

FORBES: BMW 745i