well to make a long story short, our cars main purpose life beside us building the shit out them, was that they were to help you save on better fuel comsumption, thats why we can have 300+ hp and still get 30-32mpg think of it this way...2006 ford f350 powerstroke 14-15 cityand 17-18 hywy 2006 acura tsx 27-28 city 31-32 hywy mainly motorsize and displacement bigger motor means more fuel so back to your question, we have smaller motors so we dont put out that much torque straight of the bat, again displacement....