MagneRide
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MagneRide is a semi-active suspension technology from Delphi Corporation. It was first used by General Motors in the Chevrolet Corvette C5 and Cadillac Seville and STS but will also be used in the Ferrari 599, the Audi TT and in some Holden Special Vehicles models in 2007. It uses ferrofluid to adjust the damping rate of the shock absorbers based on road conditions and vehicle dynamics.