The 2017 BMW 5 Series is a five-passenger, four-door sedan available in two trim levels that each indicate a different engine: the 530i and the 540i. The 2017 BMW 5 Series comes standard with LED adaptive headlights, 18-inch wheels, driver-selectable vehicle settings (altering steering, transmission response and throttle calibration), LED accent lights, LED foglights, power-folding and auto-dimming heated mirrors, automatic wipers, a sunroof, adaptive cruise control, dual-zone automatic cruise control, a power tilt-and-telescoping steering wheel, driver and passenger 16-way-adjustable sport seats with power-adjustable side bolsters and driver memory functions, a 40/20/40-split folding rear seat and premium vinyl upholstery. Standard technology features include the iDrive interface (knob/button controller and 10.3-inch display), a navigation system, gesture and voice controls, Bluetooth phone and audio connectivity, BMW emergency services, and a 205-watt, 12-speaker sound system with a CD player, HD radio, an auxiliary audio jack, a USB port, a media player interface and 20 gigabytes of digital music storage. Options include a 600-watt, 16-speaker Harman Kardon sound system or a 1,400-watt, 16-speaker Bowers & Wilkins premium audio system, 20-way-adjustable multicontour driver and front passenger seats with ventilation and massage, a rear-wheel steering system and adaptive dampers. The Adaptive Drive system package combines the adaptive dampers with active stabilizer bars. An M Sport package includes unique body trim, a lowered suspension and 19-inch wheels, a sport leather steering wheel and unique interior trim. Twenty-inch wheels are optional on the 540i when the M Sport package is selected.