V6 engines are far superior to V 4 cylinders. They run faster than V4 engines and consume more fuel. Because of the more cylinder and more spark plugs which causes combustion. Some Mechanics can be confused when fixing them.
V6 engines are more expensive to build and maintain compared to v4. mm
In a 4-cylinder engine, there are four pistons rising and falling in four chambers.
A 6-cylinder engine features six pistons and produces a theoretical 50% more power than the same 4-cylinder engine.






Read more:http://autoremedy365.com/do-you-know-these-facts-about-v4-and-v6-engines/

Nothing like a "V4" engine, 4 Cylinder engine is straight and not V in shape.

The name V is taken from the engine shape, so it's V-6, V-8 and so on. There is also V-4 and V-2, but I bet you must have not seen those engines before, they can be found in really older cars or power bikes.

The regular 4 plugs engines you see are called flat 4, or as earlier said, straight 4.