^^ What he said. Too expensive. No point spending that much money now on an RS when:
a) You could spend it travelling...
b) Save it for uni...
c) Would probably damage the car at some point or another, not want to claim off the insurance for fear of the premium increasing and therefore having to fork out for a big bill...
d) Save it for a much better car in a few years time when insurance premiums aren't ludicrous!
I count myself lucky in a way for learning to drive in a 300+hp Merc, it made me respect stupidly powerful cars at a young age. In a way it put me off wanting a powerful car as it made me realise that there's more to driving than speed - there's so much to enjoy and yet so much to learn other than flooring it everywhere.
There's no-way I'd personally ever get anything that quick until I could both afford the insurance on it (which now is ironically less than a 172!!) and until I am sure that I would (for the most part) drive it responsibly. There's a reason they try to put you off insurance on cars like this when you're younger! According to them, there's no point having a nice car if you are statistically likely to stack it in a few months