methinks that you should make it a hybrid... a lá chevy volt style. Get a good strength electric motor, hook it up to a small battery pack, then the battery pack to a generator motor, then have the generator motor hooked up to a small internal combustion engine, maybe a 3cyl diesel or a small Honda gas engine. That's a project that I have my sights set on for the future, though i'm thinking of basing it on a f-350 chassis cab with a custom fabbed rear end.
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