By my calculations, the FEH should get a $650 or $1,300 tax credit depending on whether you spring for the AWD or FWD, respectively.

Both FEH's (3792# and 3672# for AWD and FWD, respectively) are in the 3,500-3,999 pound weight classification, which is 22.6 mpg (number to compare to).

The AWD is 46% more Fuel Efficient (city driving MPG of 33) for a credit of $400. It will also save 1,673 gallons of gas over its 120,000 mile "lifetime," for an additional credit of $250.

The FWD is 59% more FE (city driving MPG of 36) for a credit of $800. It will also save 1,976 over its 120K lifetime, for an additional credit of $500.