Refreshed for 2014, the BMW Z4 is a RWD roadster available with three different engines; a standard 2.0-liter twin-turbocharged 4-cylinder engine (240 hp), an optional 3.0-liter twin-turbocharged inline-6 (300 hp), and a performance-oriented 3.0-liter twin-turbocharged inline-6 (335 hp). Transmission options consist of a 6-speed manual transmission, 8-speed automatic transmission, and a 7-speed double clutch automatic transmission. Fuel mileage falls within an EPA estimated range of 17 mpg city to 34 mpg highway, depending on engine selection. Features include 18-inch wheels, electronic throttle control, xenon adaptive headlights, iPod integration, voice activated navigation system, DVD player, heated front seats, parking assist, 10-way power seats, and M Sport package. Safety is comprised of advanced airbags, cornering brake control, driving dynamics control, anti-lock braking (ABS), dynamic stability control (DSC), brake drying, dynamic traction control (TCS), vehicle-speed-sensitive electric power steering, and tire pressure monitoring (TPMS). The Z4 is backed by a 4-year/50,000-mile warranty.