(Let me jump into this without reason or ryme) In my oppionion i use 90 degrees, (the max my wheel turns :shrug i can whip around and out of situations really fast, so i use the lowest settings i can when it comes to turning degrees.
Its very unlikeley to have someone buy you an S2, thats like asking someone to buy you a real life car. I would sugjest just simply paying someone the real money and haveing them hand over the info pass, ect.