how do remote controlled cars and battlebots work?

i am looking for a website or video for beginners to explain how rc cars work like what each wire does and how to set up a new motor or battery pack. 5 stars to best answer

This would tell you how RC’s Work:
http://www.howstuffworks.com/rc-toy.htm

Extra info on RC’s
http://en.wikipedia.org/wiki/Radio-controlled_car

Hope it helps