The 2015 BMW 2 Series is a second-generation luxury sport compact vehicle, offered as a coupe or convertible. Two trims are available: the 228i with a 240-hp turbocharged four-cylinder engine, and the sportier M235i with a turbocharged six-cylinder engine producing 320-hp. An eight-speed automatic transmission is standard, with an optional six-speed manual. Rear-wheel drive is standard with optional all-wheel drive (xDrive). Key safety features include stability and traction control, antilock disc brakes, front side airbags, and side curtain airbags. The convertible has rollover protection. Its infotainment system features a 6.5-inch display, with options for a Harman Kardon sound system, navigation, and BMW's iDrive technology interface. The BMW 2 Series generally won high grades for its agility, power and upscale cabin design.