The four-passenger 2015 BMW 6 Series is available in 640i and 650i trim levels. Standard equipment on the 640i includes 18-inch wheels, adaptive xenon headlights, LED foglights, adaptive suspension dampers, front and rear parking sensors, heated auto-dimming and power-folding mirrors, automatic wipers, a large tilt-only sunroof (coupe only), keyless entry and ignition, heated six-way power front seats (with four-way lumbar adjustments), driver memory functions, leather upholstery, a power tilt-and-telescoping steering wheel, dual-zone automatic climate control and a rearview camera. Standard infotainment features include a digital instrument panel, Bluetooth phone and audio connectivity, the iDrive interface with a 10.2-inch display and a touchpad-enhanced controller, a navigation system and a nine-speaker sound system with a CD player, USB connectivity and satellite and HD radio. The 650i adds 19-inch wheels, a sport exhaust system, a 16-speaker Harman Kardon surround-sound audio system, 16-way power front seats (with memory settings for both) and upgraded leather upholstery. The Executive package adds the 16-way front seats and Harman Kardon audio system (640i models), power-closing doors, ventilated front seats, ceramic-trimmed knobs, a head-up display, a power rear sunshade (coupes only) and extended leather trim (650i models). The M Sport package includes unique 19-inch wheels, dark exterior trim, an aerodynamic body kit, a sport steering wheel and a faux-suede headliner. Standard safety equipment on the 2015 6 Series includes antilock disc brakes with advanced standby and drying features, traction and stability control, front-seat side airbags, front knee airbags and active front head restraints.