The first ever BMW M550i xDrive powered by a 456 horsepower specifically modified M Performance TwinPower Turbo 4.4 liter 8-cylinder engine mated to Steptronic Sport 8-speed transmission propels the BMW M550i xDrive from 0 to 60 mph in under 4.0 seconds and then on to an electronically limited top speed of 155 mph. Available options include Active Driving Assistant Plus, including Active Cruise Control with Stop & Go, Evasion Aid and Active Lane Keeping Assistant. The 2018 BMW M550i xDrive will be available at U.S. dealerships in spring 2017 with pricing announced closer to market launch.
