I'd like to chime in with something completely different (not an R). I had a test drive in a new 1.8 Polo GTI yesterday - great car for fun driving. Feels as quick as a Golf GTI (very similar power to weight ratio), but still a little rough around the edges. The Performance MK7's refinement really does take a bit of excitement away because they're all way quicker than they feel. Do you need a car the size of a Golf?
Downsides are far less standard equipment and if you do regular long journeys you might wish you had the MK7's refinement (although Newcastle to York in the wife's A1 on the same underpinnings is fine).
The above applies to the 1.8, don't get the 1.4 twin-charge.
GFV on the Polo GTI looks far better than the Golf's and it comes with a free year's insurance (when bought new).
I'm almost tempted myself - a colleague keeps hassling me to sell him my R.