Regarding the comparison with Clio RS...
I've done a couple of trackdays on a twisty go-kart track

and achieved 58:8. My friend who owns a stock RS CUP managed 57:3 (believe me, 1/2 sec. on this track is a lot). He's a very capable driver but I can drive as well...Corsa OPC, Golf GTI V, Civic Type R and simmilar were all well of both his and my time. He uses Contisport C3 tires which imho are pretty darn sticky, but I'd still say that the Clio in general is much more of a track car than an AGP. Mind you, I also use Eibach springs (Pro)...
As for the straights, I never managed to find an RS to try it. I did however make a few runs with an OPC and can easily say that both cars are practically identical when it come sto straight accelerating from 60 mph --->. Unfortunately, Corsa is not really a performer when it comes to twisty sections.
If I'm lucky enough, I will meet a friend today, that just bought a new Beeza Cupra and we'll see.
I still believe that Clio (if you manage to get it off line nicely) will leave the AGP and SS AGP behind...
F