The BMW 320 was a variant of the E21 3 Series that was introduced for the 1976 model year. The 320 was powered by BMW's M43/1 engine, which was a 2.0L inline four based on the famed M10 engine. These carbureted engines had an output of 109hp, which was sent to the rear wheels through manual or automatic transmission options. The BMW 320 was built until 1977, when it was replaced by the E21 BMW 320/6.