http://www.racing-cars.com/pp/Manufa..._RC/CR151.html
Is it that ^^^^ one?
Or this one?
http://www.racing-cars.com/pp/Manufa..._RC/CR153.html
First one has 15 model memory, second one, yer knackered. No memories. Well, just the one!
And FWIW, the recievers aren't bound to the cars, all the clever stuff is in the transmitter, so if you have no model memories, you'll need to rebind and calibrate the ESC every time you swap cars.