Actually, Lessss, Transforming a gas vehicle to electric is not difficult at all. Never done it, but if you think about it, if you turn the key, without starting the motor, everything works. Cars and trucks are already electric.
The most difficult part is linking the electric motor to the drive, and that is easy. The most work is actually to remove all the junk from the car. Motor, trany, exhaust pipe, alternator and gas tank.
The reason I offer this solution eventhough you want a prefab, is because they will not manufacture such vehicles ever. The next step for them is to sell us hydrogen, because they want to keep selling us something.
They = Governments, gas companies, cars manufactures and everybody involved in world economy...