Carlos, I'm from switzerland, and I know how to drive mountain passes. but I tested a 420 hp rs4 3 days ago, and I can tell you it's f...... fast.

On a higway no doubt, the rs4 is faster than a 996 320 hp or 300 hp. I drove all sort of porsches and I never had so much power on a straight line. Expect the turbo or the gt2 or gt3.

If I drive on mountain roads, and I will drive fast, it's not easy with the porsche, I know what I tell you, we compared lot of different porsches and also other cars like the lancer evo VI or VII. If you drive agressive you will have an advantage with 4-wheel drive because the surface is sometimes so bad, that you will have no traction with the rearwheeldrive models.

I'm sure the porsche is faster over all, but I wondered how fast an audi can be. from 100-200 I thought I was only 4 seconds or so ;-)

greets michael