The 2011 BMW X5 xDrive50i takes its place as the flagship of the BMW X5 family, yielding 400 horsepower at 5,500 rpm and 450 lb-ft of torque at 1,750 – 4,500 rpm from its twin-turbocharged 4.4 liter V-8 engine.

The 0-60 mph sprint is accomplished in 5.3 seconds, a full second better than the previous V8 X5 model. In spite of its impressive performance, US EPA fuel efficiency figures for the BMW X5 xDrive50i are 14 city/ 20 highway/16 combined, virtually unchanged from the previous model. The 2011 BMW X5 xDrive50i starts at $59,775 including Destination & Handling.

The new 8-speed transmission is standard in the 2011 BMW X5 xDrive50i and X5 xDrive35i, and raises the industry standard for compactness, efficiency, and gear selection. The new transmission weighs no more than its 6-speed predecessor, yet offers closer ratios in the lower gears for improved acceleration and two additional “tall” gears for relaxed, efficient cruising. BMW’s 8-speed automatic was introduced on the 5 Series Gran Turismo and 760Li Sedan in the fall of 2009.

The 2011 BMW X5 xDrive50i offer a Sport Activity Package which includes 19-inch wheels and tires. The package may be upgraded to include mixed-sized 20-inch wheels with performance tires. The BMW X5 xDrive50i is also available with an M Sport Package which also includes 19-inch wheels and tires and an upgrade to mixed-sized 20-inch wheels with performance tires.