My 2P's worth...
I used to have a modded MKV R32. It had the Milltek system, Schrik Cams, remap and CAI. It was dyno'd at 296bhp but it does weight more than an ED30.
However, in the real world, I think turbo'd cars do have the advantage because they have a much more usable band of power. How fast is it? Well compared to the majority of cars.....I'd say fast. In fairness, if you take the number of cars on the road, most are Fiestas, Mondao's, Vectra's, etc with 1.6 or 1.8 litre engines. Yeah you've got a few BMW's, but rarely do you see a hot one and by hot I mean something like an M5, not an asthmatic 330i or something.
Therefore it's fair to say that and ED30 would take most cars on the road. I know that with my Elise now (dyno'd at 234bhp), there is very little on the road that would keep up with it. That was until I swapped cars with my dad at a recent track day and drove his 997 Turbo to realise that, as fast as the Elise is, it's not a supercar!
But in the main, I'd say the ED30 is a quick car and probably the quickest of the hot hatches.