Pulsed laser sensors scan the road surface up to 7m in front of the car, detecting bumps and feeding the information back to the F700?s Active Body Control suspension. As a bump approaches, ABC uses its hydraulics to raise the body slightly, then releases the hydraulic pressure to allow free wheel movement. In effect, it lengthens and softens the springs as a bump approaches, to provide what Mercedes likes to call a ?flying carpet? ride.