So, in 1953, it introduced the Appia, powered of course by a V4 engine. Barely. See, the 1.1-liter unit was again an engineering gem, with the cylinder blocks positioned at a hair over 10 degrees.

Hardcore gearheads are well-versed in engine nomenclature, but for folks whose car knowledge ends with the difference between a manual and automatic transmission, engine designations can seem ...

Alex Rins has discussed Yamaha’s ongoing development of its highly anticipated V4 engine development for MotoGP, a project that remains under wraps since its announcement last year. This engine ...

Yamaha MotoGP chief Paolo Pavesio has revealed that Yamaha will launch the V4 engine on its M1 MotoGP bike, only if it proves to be better than the inline-four unit being used currently.