The 2010 BMW ActiveHybrid X6 is powered by a reworked version of the 4.4L twin-turbocharged V8 from the xDrive50i that now produces 400-hp and a peak torque of 450 lb-ft. BMW also took out the starter, alternator, or belt drive for the air-conditioning compressor.
2011 BMW ActiveHybrid X6 cars review and prices
2010 BMW ActiveHybrid X6 cars review and prices
The dual-circuit cooling system