 Flat engines with four or fewer cylinders are most commonly called boxer engines, "boxermotor" in German, and also are known as "horizontally opposed engines".This design is still used by Porsche, Subaru, and some high performance engines used in racing cars.In motorcycles, the most famous boxer engine is found in BMW Motorrad, though the boxer engine design was used in many other models, including Victoria, Harley-Davidson XA, Zündapp, Wooler, Douglas Dragonfly, Ratier, Universal, IMZ-Ural, Dnepr, Gnome et Rhône, Chang Jiang, Marusho, and the Honda Gold Wing.