This is an AGV or Autonoumous Ground Vehicle. I bought the RC car before even seeing that patrickmccabe was way ahead of me on designing and implementing an autonomous arduino controled vehicle :D. Anyway, so far I have removed the stock motor and fit in a Johnson 250 motor. All I had to do was grind off an annoying piece of plastic to fit in the new and some what longer motor. I am not sure what to do with the steering as it is a very rudementary control, it is either all the way left or all the way right and when it is not turning it centers for going straight. I think that I will leave it as is for simplicity's sake. More info is forth coming as I build this thing.
-UPDTATE- I noticed that the motor was skipping
so I hot glued it into the motor housing. It's going
slowly as I have been really busy recently but it
should speed up this week.
-UPDATE- (finally :P)
I finally got around to attatching leads to the steering motor and was able to hook it up to a SN754410NE motor driver. Wipped up some simple left/ right turning code and tried it all out. I am happy to say that It works beautifully. I ended up using the two cell lipo to power the motor itself as the arduino couldn't supply what I needed. More to come soon.