by predicting rather than reacting to broken pavement and speed humps. The ABC has undergone major modifications for the new S-Class: the wheel damping is now continuously adjustable, the spring strut response has been improved and the pump efficiency has been further enhanced. A digital interface connects the control unit and the sensors, while the fast FlexRay bus connects the control unit and the vehicle electronics. Processing power is more than double that of the previous system. In 2014 the new C217 S-Class Coupe introduced an update to Magic Body Control, called Active Curve Tilting. This new system allows the vehicle to lean up to 2.5 degrees into a turn, similar to a tilting train. The leaning is intended to counter the effect of centrifugal force on the occupants and is available only on rear-wheel drive models Vehicles Vehicles, chronological order: Mercedes-Benz C112 Mercedes-Benz Vario Research Car Mercedes-Benz F200 Mercedes-Benz CL-Class C215 Mercedes-Benz S-Class (W220), standard on S600 and S55 AMG, optional on other trims Mercedes-Benz SL Class R230 Mercedes-Benz S-Class (W221) Mercedes-Benz CL-Class (C216) Mercedes-Benz SL Class R231 Mercedes-Benz S-Class (W222): Magic Body Control Mercedes-Benz S-Class (C217): Magic Body Control Timeline of active suspension development 1955 Citroën DS had hydropneumatic suspension designed by Paul Magès - the first car with height adjustable suspension and self-levelling suspension; leveraging the fact that gas/air absorbs force, while fluid transfers force smoothly 1962 Mercedes-Benz W112 platform featured an air suspension on the 300SE model and the 1963 Mercedes-Benz 600 model 1965 Rolls-Royce Silver Shadow licensed technology from the Citroën DS: hydropneumatic suspension offering self-levelling 1974 Maserati Quattroporte II used the height adjustable suspension and self-levelling suspension from the Citroën SM 1975 Mercedes-Benz 450SEL 6.9 with fully Hydropneumatic suspension similar in technology, but not geometry, to Citroën design 1979 Mercedes-Benz W126 then new S class had even more sophisticated height adjustable suspension and self-levelling suspension. 1984 Mercedes-Benz W124 selected models of E class had this technology (rear only hydraulic suspension) height adjustable suspension and self-levelling suspension. 1985 Bose Corporation founder and CEO Dr. Amar Bose Designed a suspension that mixed passenger comfort and vehicle control, this system used linear electromagnetic motors, power amplifiers, control algorithms and computation speed. Early-1980s through early '90s, Lotus Engineering, the consultant branch of Lotus Cars, experimented with active suspension layouts, combining Electrohydraulic servo valve technology from aerospace, a variety of sensors and both analog and digital controllers. About 100