v12

A V12 engine is a twelve-cylinder piston engine where two banks of six cylinders are arranged in a V configuration around a common crankshaft. V12 engines are more common than V10 engines. However, they are less common than V8 engines.
The first V12 engine was built in 1904 for use in racing boats. Due to the balanced nature of the engine and the smooth delivery of power, V12 engines were popular in early luxury automobiles, boats, aircraft and tanks. Aircraft V12 engines reached their apogee during World War II, following which they were mostly replaced by jet engines. In Formula One racing, V12 engines were popular during the late 1960s and early 1990s.
The most common use of V12 engines in the 21st century has been marine engines, large stationary engines and European sports/luxury cars.

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