The BMW X4 M is a high-performance SUV, part of the German automaker's X4 line. It was introduced in 2019 as an M Performance variant of the regular X4. It features an upgraded engine, more powerful brakes, and a stiffened suspension. The X4 M also comes with exclusive exterior styling, such as an M-specific front bumper and side skirts, as well as a quad-exhaust system. It is available in both rear-wheel-drive and all-wheel-drive configurations.