Tevva Motors Is Still Alive (Range-Extended Electric Trucks) | CleanTechnica I still don't understand why we don't have more large format vehicles with battery only energy. They clearly have the room and weight carrying capacity to place the batteries in. I'd be especially happy to see 40 ton Tesla trucks, for instance. And those customers are looking more at total cost of ownership than car buyers and not as much on how good it looks or capital costs, so it should be relatively easy to engineer and design something that is marketable. It baffles me why Tesla doesn't have a side business in trucks and tractors.