1) same as maintaining any other car. just make sure you do a service every 5000kms
2) my r32 was my first car
3) i don't know, ive never drifted my car but it can drift. have had a race driver drive my car and drift it so i know its not too bad
4) i bought mine privately, but i guess, look hard for a clean one. you would regret it later on if you just run out there and buy the first one you see