The XM is the ultimate, highest-performance SUV in the BMW stable. It’s also the most powerful and most expensive, not to mention the heaviest at 2,764 kg. A twin-turbocharged 4.4-litre V8 combines with an electric motor to create a performance-focused plug-in hybrid system generating 644 horsepower. The more hardcore XM Red Label even cranks output up to 738 horsepower. With a fully charged battery, pure electric range is announced at 50 km.