if you buy the rc10gt its a really easy truck to work on, its easier to work on the rc10gt then the rusty( rusty mean nitro rustler), i own a rusty buts its a pain in the ***** to work on somtimes, if you put a better engine in the rc10gt it can go faster then a stock rusty, and the stock rusty wont pull nearly 50 stock, you have to change the clutch bell for it to go 50 or over, traxxas says its 47mph stock