Here are the specifications of the 2017 BMW X3 20d: Fuel & MPG: Premium unleaded (required), EPA city/highway MPG: 28/34, EPA combined MPG: 30, Range in miles (city/hwy): 371.7/495.6 mi 1. Engine: 2.0-liter 4-cylinder diesel engine with 190 horsepower and 260 lb-ft of torque 12. Transmission: 8-speed automatic transmission with manual shifting mode 1. Dimensions: Length: 183.6 in, Width: 74.4 in, Height: 66.1 in, Wheelbase: 110.6 in 3. Cargo capacity: 27.6 cubic feet with rear seats up, 63.3 cubic feet with rear seats folded down 1. Safety features: Dual front side-mounted airbags, front and rear head airbags, passenger airbag occupant sensing deactivation, child seat anchors, rear door child safety locks, front and rear ventilated disc brakes, dusk sensing headlamps, front fog/driving lights, front height adjustable headrests, rear center 3-point belt, remote anti-theft alarm system 1.