V3 engine

[1] The 1968 Suzuki RP68 was intended to compete in the 1968 season, however a rule change mandating single-cylinder engines meant that the 50 cc (3.1 cu in) RP68 never raced.

[2][3] Honda later revived the layout for the 1982–1984 NS500/NSR500 Grand Prix racing motorcycles.

In November 2024, Honda showed a prototype of a newly developed V3 engine paired to an electric supercharger.

[5] A related layout was the W3 engine, although this placed all three cylinders in the same plane, but none of them in the same bank.

This was used for the 1905–1915 four-stroke Anzani engine, which was used in motorcycle and aircraft applications.