Which came first, the W12 engine or the VR6 engine?
W12 engine: A W12 engine is a twelve cylinder piston internal combustion engine in a W configuration. W12 engine:  W12 engines have been manufactured in two distinct configurations. W12 engine:  These were used in several aircraft engine designs from the 1920s, notably the Napier Lion and various French engines. VR6 engine:  Developed by the manufacturer in the late 1980s, evolutions of these engines are still produced by them.
W12 engine