The 2015 BMW M4 is the high-performance variant of the 4 Series coupe and convertible. It is powered by a twin-turbocharged 3.0-liter I-6 with 425 hp and 406 lb-ft of torque that's paired with a ...

Front-row legroom measures 40.3 inches in the BMW, a bit less than the Audi's 41.0 inches. Second-row legroom is 36.4 inches in the X3, not as much as the Q5's 37.8 inches. An 8.8-inch ...