The strange and clever V4 engine design Lancia developed in the 20th century helped small sports cars like the Fulvia become ...

Mazda has never been afraid of some truly odd engine designs. It keeps trying to make the Wankel work. It has a gas engine with compression ignition. And the company has made 14:1 compression gas ...

Combustion engines with an odd number of cylinders are not unheard of but are not particularly common, either. Honda‘s just trotted out an interesting one: A V3, so, two pistons on one side and one on ...

Technically speaking, an engine is a device that converts some form of energy into mechanical energy. Taking that definition ...