BMW X6 M

The X6 M steps up from the 400-hp, 4.4-liter V-8 to a twin-turbocharged version making 555 hp. Torque is rated at 500 pounds-feet. BMW says the zero to 60 mph time is 4.5 seconds. A six-speed automatic is the only transmission offered with M-tuned Drive, Sport and Manual modes, the latter of which is activated with the console shifter or aluminum steering-wheel paddles. For 2011, there are no significant changes.

In addition to revised suspension geometry, bushings and tuning, the M suspension lowers the X6 by almost a half-inch. BMW has also tweaked the stability system and xDrive all-wheel drive to maximize performance, more proactively shifting torque rearward when called for. A display on the instrument panel shows the driver how much power is going to each wheel. The brakes are also beefed up, with larger discs and calipers.

The X6 M doesn't hide its special status — especially with its huge air intakes in the front bumper for cooling the brakes, water-cooled turbo intercoolers as well as the engine. The M also features unique 20-inch wheels, front fender vents, quad tailpipes and rear diffuser. The side skirts are also body colored rather than black.

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    Dimensions
    Coupe All dimensions given in inches/mm. Smallest turning circle dia.: 35.1 ft/10.7 m 135i: height 55.4 in/1,408 mm Convertible All dimensions given in inches/mm. Smallest turning circle dia.: 35 ...

    Pressure specifications
    The tire inflation pressure table, contains all pressure specifications for the specified tire sizes at the ambient temperature. Pressure specifications apply to approved tire sizes and recommen ...

    Manually adjustable seats
    At a glance 1 Forward/backward 2 Thigh support 3 Seat tilt 4 Backrest width 5 Lumbar support 6 Height 7 Backrest tilt Forward/backward Pull the lever and slide the seat in the desired di ...