I'm guessing that the version of the Energy Bill Romir is using is closer to the final version than what I used; I base this on the fact that it is harder to understand (and it is the conference committee report).
Romir: Did you find a definition of the "Vehicle Inertia Weight Class"?
It looks like there mayalso be a tax credit for "advanced lean burn engines" (i.e. some Honda Civics non-hybrids --Civic HX?).
--Walter