I don't have enough energy for Your whole article tonight because it is very late but here is what I was told (please don't ask who are those numbers from but it is from people inside )

Octavia WRC evo 3 was 320 (maximum 330) Hp and I'm sure about it.
Fabia WRC 05 has some 330, maybe up to 340 Hp at about 4500 Hp and about 640 Nm at about 3000 rpm.
Corolla WRC Lexus is 610 Nm and 325 Hp.
Focus 04 was 680 Nm and 350 Hp at about 5000 rpm.
Focus 06 was 750 Nm and 350 Hp at about 4500 rpm.

And for Your second part. I know that one particular Punto S2000 is 262 Hp and second 272 Hp. Both are client cars but one is aproximately half year older. From other cars I know Suzuki Swift S1600 is 238 Hp. I was told some others but I can't confirm them, Clio S1600 240 Hp, Punto S1600 232 Hp. C2 S1600 was told to be slightly less powerfull but with much more torque against Swift.

I also saw two dyno charts of Evo 9 and one was 533 Nm at 3250 rpm and 283 Hp at 4000 rpm and the second was 560 Nm at 3400 rpm and 278 Hp at 4200 rpm.