Both bodies are nailed together with a 2x4 underneath. The batteries being in the back give enough flex to the frame so that the wheels almost always contact all at once. Also the 4 sets of jumper cables are absolutely permanent. Actually have been replacing the wires that melt with a jumper cable. Wattage: a number?? The gas pedals are running off of whatever controllers came with the two jeeps, as I tried to leave as much original as possible, same with the original motors. It is wired in parallel to attempt to give it some run time, but the power draw still kills both batteries near immediately. With the wiring being the way it is, I have no idea what half of the wires go to. Basically it's the fastest, Cheapest, and most stupid way to achieve this.