The motor had a nack for comming loose even with locktite, seems like the pull start broke right away, there was some sort of problem with the wheel staying on the axle, the whole drive train just seemed a little shakey in general. The kid bought the thing on ebay, and then got a radio at the hobby store to get it running. I broke it in for him, and i will say that the engine starts easy. Once the thing is going it actually accelerates really fast because it was so light + 4wd (its a 10th buggy i think, deffinatly not 8th) it just didn't handle any other part of the track well at all. But if you want to try one go for it, i think you can find them rtr on ebay for around 140 brand new.