V4 engine

A V4 engine is a V form engine with four cylinders and 3 main bearings.

Automobile use
Lancia produced several narrow-angle V4 engines from the 1920s through 1960s for cars like the Lambda, Augusta, Artena, Aprilia, Ardea, Appia, and Fulvia. These were a predecessor for Volkswagen's VR6 family.

Ford of Europe produced two totally different V4 engines with a balance shaft, one in the UK and one in Germany: Saab featured the Ford1,500 cc (92 cu in) OHV V4 engine in their 95, 96 and Sonett models, producing 65 bhp (48 kW) and 85 lb·ft (115 N·m) of torque.
 * The British Ford Essex V4 engine
 * The German Ford Taunus V4 engine (also used by Saab)

The Ukrainian manufacturer ZAZ also used air cooled V4s with a balance shaft, produced by MeMZ and used in Zaporozhets cars.

Other uses
Another use of the V4 engine is in outboard motors. They are two stroke cycle and generally carbureted. Some of the largest manufacturers are Johnson, Evinrude and Yamaha. This type of engine is popular because of its small size, while still producing 140 hp, or more.