what everyone is trying to say politely is save up and get a hobby grade kit it will be worth it, plenty of parts to add on and better quality.
drifting rwd is tough but if you pratice with that car when u buy a better one you will have a headstart [8D]
dont think you can upgrade the motor but i could be wrong,use it for fun thats what driftings about,save up grab one of the kits the guys mentioned and your ready to slide sidewayz
