Okay so apparently back in the day they used to make some V4's used by ford in germany and england in some vehicles. They are also more commonly found in motorcycles aswell.
http://en.wikipedia.org/wiki/V4_engine
Here is a link to the ford V4 motors
http://en.wikipedia.org/wiki/Ford_Taunus_V4_engine
it seems saab also used this design in some of thier vehicles and the V4 was the basis of the VR6 design that Volkswagen uses.