The 2011 BMW 1 Series is a compact executive car that comes in two styles: coupe and convertible. Under the hood, it hosts three engine options: a 3.0-liter inline-six producing 230 horsepower for the 128i, a turbocharged 3.0-liter inline-six offering 300 horsepower for the 135i, and a whopping 335 horsepower for the 2011 1 Series M. All versions come standard with rear-wheel drive and a six-speed manual transmission, with a six-speed automatic available as an option for the 128i and 135i. The 1 Series features a well-appointed cabin with standard features like automatic headlights, rain-sensing wipers, cruise control, and a sound system with a CD player, HD radio, and an auxiliary audio jack. BMW's iDrive infotainment system is offered as an option. Safety highlights include standard stability control, anti-lock brakes and multiple airbags.