The car which load legal in states for sure isn't road legal in Germany. So which "road legal" when we talking about the races? USA; UK; German?
On this forum, technically all over the world.... But based on membership, probably mostly USA, with several from the UK... Even within the US, each state enforces rules a little different. Emissions are a federal requirement. California.... Well, California is on a different planet.... Then there is the "for off road only", which tends to be the most relaxed to the point where the same cars can't be driven on public roads "legally". Yep, what's OK on US roads probably wouldn't be allowed on roads in Germany. Even the mod's are restrictive in Germany and for the most part need to be TUV approved.... So different places - Different rules...
That's my point. Make in Germany road legal fast car is harder and cost more then in UK. So it's hard to say in UK the fast road car. I give you an example. My car has all TUV and it is legal in Germany too. The car which we talk about (Richard turbo) doesn't has that - so it isn't road legal in germany. So mine is but it was on slicks, and his doesn't but he has road tyres. But both weren't legal in mostly EU countries. Soo here is my point.
The best way is to make classes like: - no turbo/SC - stock SC - other SC - turbo - turbo + SC conversion etc. And then quickly we see where we are.
Road "Legal" is tricky. By the letter of the law anything that effects the vehicles crash testing or emissions ratings would make it not legal. This means things as simple as changing the tires size (which would effect MPG's) or changing springs (which would change the bumper height and therefore effect crash testing) all make a car not "LEGAL" to the letter of the law. I'm sure even changing intercoolers could be argued that it has an effect on how the car would react in a heavy front end collision in comparison to how Mini designed it. Here in Florida (at least my part of florida) nothing is checked. I happily drive around in a Volvo 240 with a Carbed stroaker motor V-8 in it and gets 4mpg (well, use to drive it around when gas was cheaper). It's road legal as far as I'm concerned. Just not anywhere where someone checks. So the Moral of the story... No Modified car is technically road legal. It just hasn't come across an inspector anal enough to kick it off the road. So claiming this is pretty pointless.