An engine with twelve cylinders and pistons arranged in a v formation as would be a v6 or v8 etc etc. there are many engines in the v formula usualy with an even number of pistons although notable exceptions are vw's v5 engine. v12 engines are probably most commonly associated with the marque Jaguar.
by mr gavin January 21, 2007
by JaaagMan December 29, 2011