GM should have used a diesel for the VOLT
Bio-D would be cleaner and the torque that a diesel makes works better than a gasser , also when doing a generator setup where the engine rpm is constant with a constant load a diesel is even more eff. then normal.
1.4 liter (140hp) gasser and it only gets 300 miles on a 12gal tank thats only 25 mpg
Diesel 1.4 liter could easly get 50+ mpg heck my Jetta (2.0L) pushing a 3500 lbs car at different loads gets 42 mpg hwy and 37 city (tested fillups)
40 mile = no tailpipe + 600 range B99 = nearly no tailpipe emissions with proper NOX controls which on a generator at a static load is easily achieved.
Money is not evil. Good people do good things with money and bad people do bad things with money. Which will you be???
The ultimate Altima = 2.5L V6 twin turbo diesel(150hp/250tq) with 60 hp HEV and LARGE battery.

Great style & looks with power and great MPG