These cars come with a significant boost in performance and hallmark M precision in the interplay of the powertrain, chassis and aerodynamics – coupled with unrestricted everyday utility and high levels of efficiency. The BMW M550d xDrive, BMW M550d xDrive Touring, BMW X5 M50d and BMW X6 M50d models will have their world premiere at the Geneva International Motor Show (8-18 March 2012).