[Erik Latranyi]

The great fuel mileage is because Honda uses a diesel engine in the European versions of their hybrids that really makes great mpg.

Here in the US, diesel has been effectively killed by the anti-truck crowd.

[willgolfforfood]

That's too bad, because lots of the current mid-size and almost full size sedans in the USA now get about 25 MPG. Doing little more than plopping in some of these high tech small diesels would jump that to 35 MPG or so... and then you're already withing shouting distance of the new 39 MPG standard bandied about this week.

This would be one much less painful way to get to the new CAFE goal.

But don't forget the $64,000 question... is there enough diesel refinery capacity to make such a wholesale switchover from gas to diesel in a few years?

NOPE!