So I believe that I'm in the right company here as some of you seem extraordinarily smart, or perhaps I'm just extraordinarily dumb, either way here is my thoughts. The Basis: A one ton 4x4 crew cab truck that is diesel electric. For this purpose lets use a 2017 Ford F-350 with the 6.2L gas pot The drivetrain: All aspects remain the exact same diffs, transfer case etc... save for the motor. We would replace it with a two cylinder diesel motor, driving a generator. Generator would supply power to batteries, which would then turn a 400hp electric motor bolted to factory transmission. The diesel generator would be on a on demand system so that once batteries charged it would shut off until they reached a state of 60% charge remaining. The reason: A fully capable truck that could roll down highway and get 70mpg doing so. While not being reliant on needing to stop and re-charge, and since it is diesel would be able to work in remote sites without fear of not getting home, as most remote sites have heavy equipment in the area My question to all of you: Is this even plausible? Would the combo of diesel electric with battery storage be able to produce enough power/torque to pull/carry similar loads for the same distance? But when bob-tailing be able to achieve unheard of fuel consumption? Cost to convert? This reason for this thread is basically curiousity, as the truck in question is my current work wagon, and with 180Litre/ 48gallon tank it barely can muster 700km/ 440mi. That is not loaded up to max payload either.