I want to power this empty model boat with this RC car, but without dismantle the RC car parts, just use it as it is without any changes to the RC car. Converting RC car to RC boat is easy, just use the electronic on the RC car and move it to the model boat. But with that way you can't do that with your perfectly fine RC car. So the idea is to use your RC car without any changes and use it to power your RC boat.