The BMW X4 is a compact luxury crossover SUV manufactured by BMW since 2014. It is marketed as a sports activity coupé (SAC), the second model from BMW marketed as such after the X6, and features styling elements and the roofline of a traditional two-door coupé. The X4 is widely considered as a "coupé" version of the X3, trading its practicality with a sloping rear roof which offers a sportier styling.

Bayerische Motoren Werke AG, commonly abbreviated to BMW, is a German multinational manufacturer of luxury vehicles and motorcycles headquartered in Munich, Bavaria, Germany. The company was founded in 1916 as a manufacturer of aircraft engines, which it produced from 1917 to 1918 and again from 1933 to 1945 creating engines for aircraft that were used in the Second World War.