My first RC tanks were a series of Radio Shack Tandy sorry examples of armor wannabees. The electronics were faulty, ie.would stop working all of a sudden for no reason. The tracks were natural gum rubber and would fall off running straight across the room. Very frustrating for a young kid crazy about tanks! You can imagine my joy when I bought and built my first 1/16 Tamiya King Tiger. It was like landing on the Moon!