How would you think one could build a motor with .2 of a cylinder? It has four and one-fifth cylinders? Haha. And regarding the smaller displacement engines putting out more power, its all a matter of engineering. The more efficient a motor is made, the more power. The 4.0 is a beast of a motor in regards to reliability, but it is highly outdated in regards to actual design and in regards to the little power it puts out for such high displacement.