Originally Posted by Paulv

I think from previous fuel economy comments by others your 13.5 while running up to 160 is pretty OK for this vehicle. A commie is about half the height so about half the frontal area. The drag on a Terri will always be higher than a commodore - that would hold true for any 4WD shaped vehicle.

If a Terri did the same fuel economy as a Commodore then you'd see a whole bunch of GM (and others) engineers committing suicide :-)