Electrical Energy is not a good choice if you plan to be driving a lot, unless you have a ton of solar panels and a ton of storage batteries.
Diesel, however, is a great power source. Unlike gasoline, its renewable via Biodiesel (found in a book), and also is pretty abundant. The V12 Diesel Engine is super strong (but usually comes with faults, so pick up Improvised Army Field Repairs).
Really, before you even consider using electrical power for propulsion, you should make sure you have enough power to run a minifridge first (they take a surprising amount of power).