Originally Posted by gpsman1

It has the correct tires, and they are slightly over inflated.
I'm getting better than published MPG.

I just thought of one tidbit. The Insight has "new" OEM tires, just 5k on them.
The Escape has "old" OEM tires, 65k on them.

Going over camel humps in the road, I always figured a bowling ball and a golf ball would roll the same distance, putting air resistance aside. The momentum of the bowling ball would do more damage if it hit something in motion, but I don't think it would coast further up the next hill. Extra mass = extra gravitational pull... both on the uphill and downhill.

So for some reason, I feel the Insight has some drag that is not obvious.
It may boil down to its extreemly light weight means bumps and cracks in the road slow it down more than expected.

I can coast those camel humps in "Neutral" in the Escape.
I need to use gas on the uphill side when in the Insight.
I'm sure no laws of physics are being broken.
I just find that really interesting.