The problem that you have encountered, is the fact that it is a toy. The members here are racers. There is tremendous amount of knowledge here about HOBBY GRADE r/c cars. The car you are asking about does not have the proportional controls in the radio, the parts are not replaceable, and when the inventory of the car is sold out, the mfg forgets it ever existed and makes a Hummer or Ferrari or some other throw away toy.
Don't be offended by the lack of help. the members here just don't know or care about toy grade cars.
If you had a vintage Tamiya Road Wizard, or Kyosho evolva or something like that you would have rec'd 10,000 answers