[emh]

This is quite an eye opener -- I didn't expect to see Chevy and Lotus(!) so high up the list.

It could be argued that what's really important is the weighted average (average fuel economy for each model times the sales of that model), which I think would make Chevy look worse. HOWEVER, this shows that Chevy does offer fuel efficient options... if people choose to buy the ones that aren't -- it's hard to fault the manufacturer.