[MattsAwesomeStuff]

Just buy a generator then, that should be fine. Plus, a generator you can add or remove as cargo, or, use as a generator.

 

[MattsAwesomeStuff]

In a car I don't see how this could be workable, because the generator can't run while inside the car... the fuel can't even be stored in the interior.

Just stuff it in the car where the engine used to be, and hook it up to the original gas tank. Now you'll have an engine just as bulky, a fraction as efficient, and less than a tenth as powerful.

Hybrids are silly.

Alternatively, a trailer.