A performance variant of the X6, the 2013 BMW X6 M is equipped with the same 4.4-liter twin-turbocharged V8 engine that can be found on the X5 M, producing 555 hp for a 0-60 time of 5.1 seconds. A 6-speed M-Sport automatic transmission paired with M-tuned AWD enables the X6 M to achieve an EPA estimated 12 mpg city and 17 mpg highway. Performance features include sport suspension, dynamic stability control, quad tailpipes and M-brakes. Other features include xenon adaptive headlights, chrome exhaust, 20-inch wheels, engine start/stop button, power tailgate, park distance control (front and rear), navigation system, Bluetooth® wireless capabilities, HD radio, and USB adapter. Safety is comprised of dynamic stability control (DSC), anti-lock braking system (ABS), advanced airbags, and tire pressure monitoring (TPMS). The X6 M is backed by a 4-year/50,000-mile warranty.