[John Jamieson]

Interesting the biggest benefits are going to be to the largest vehicles, because there is a higher fuel cost to begin with. Technology like this should be tried in commercial vehicles first; not eco boxes. A 10% improvemrnt in the operating cost of a large truck or bus can pay for a lot of extra junk onboard.

[mewzilla]

Course if the cost of gas goes up to $4 a gal, fuel-efficient cars will look a lot better.