The BMW X6 is a mid-size SUV, although the BMW itself is described as a SAV (Sport Activity Vehicle) rather than an SUV (Sport Utility Vehicle), emphasizing not the off-road capabilities but the car’s excellent performance on the asphalt. The car combines SUV style (high ground clearance, AWD system) and coupe body style (sloping roofline) in a way, and the front end is similar to the X5 model. The M X6 has a twin-turbocharged BMW N63 engine that generates 555 hp (408 kW) / 6000rpm and 680 Nm / 1500-5650rpm of torque. Other features include a 6-speed sports automatic transmission with steering levers behind the steering wheel, 10 mm lower active suspension, 20-inch alloy wheels with 275 / 40R20 front and 315 / 35R20 rear low profile tires. The X6 has a standard xDrive all-wheel drive system that typically delivers 40/60 power forward / rear. However, this system can distribute power to other wheels as needed, say in a turn, giving power to the outer wheel, thus improving the car's response. This system was developed for Formula 1 cars and is somewhat similar to the Honda SH-AWD system.