Weight Reduction for better FE

[R.I.D.E.]

Consider it from a ballistic point of view. Sectional density, the amount of mass of a vehicle in relation to its aero drag will make the glide portion extend to a greater distance. Of course the pulse phase will require more power but the additional power is created at the highest BSFC point of the engine as long as that is properly used by the driver.

I think there would not be much difference, especially in situations where elevation changes do not cause losses due to excess downhill speeds. Where elevation changes are severe weight becomes a much more relevant factor.

In my VX with maximum load it makes some difference, and there are no detrimental elevation changes.

Of course with 4 passengers at 51 MPG each person is using only 1/4 of the total fuel, so you could argue that the per passenger mileage would be 204 MPG in this situation.

regards
gary