Hi I'm new to rc cars but I was wondering if i bought that hpi(the new on road that does 50+), could i change it back and forth just by changing tires and or suspension,and if i wanted to the engine

nobody knows

What HPI are you talking about. If its nitro then it wouldnt be a good drifter...or good for a beginner.

Nevermind because ,its nitro and i dont think im going to spend money on a rc at the moment.

thx