i'll throw a spanner in the works, megane 225 turbo sport cup/f1? alot cheaper than all of the above and a bit of a hoot to drive.
ive got an inferno orange 225, had a remap so running 260hp ish, brembo's as standard, 18" wheels, 6 speed box. Only negative in terms of performance is the turbo runs out of puff top end of rev range