Flat-four
Boxer: cylinders lying flat, punching outward
Two pairs of cylinders lying flat, facing each other across the crank, so the engine sits low and wide.
Hear itSubaru Impreza WRX · WRX STI
Real recordings, played as recorded: MilanKovanda (CC BY 4.0) · ulose2piranha (CC0 1.0)
Under the hood
