Thing is there are too many fast cars in the hands of terrible drivers with little or no experience trying to learn their cars on roads full of others. We have all been there of course, in my day it was less of problem as most the cars were horse drawn, the posh ones steam powered and the roads were far less cluttered. Day 1 of passing my test I took my Mini 1000 to is maximum speed on the A38 near Lichfield, somewhere around the massive heights of 85mph indicated (so probably around 30mph real world) and then nearly missed my braking as I came into an island due to an incredible lack of talent. None of us are immune but today all cars seem to have 110mph + top speeds so getting into danger far more quickly on MUCH busier roads is easy.
The Evo Triangle can be enjoyed at legal speeds in some cars but 70mph-90mph is the sweet spot for the best bits I think, so I am told.... I can understand how that would be a problem for those living around there and I say that as a petrolhead. Having said that there is enjoyment to be had on the right roads, with good visibility and few if any other cars on them. The North Cost 500 will be next to suffer I fear, though that has become a bit more lucrative so it might cause a stink if they camera it.
I am sorry to say having a fast car on UK roads is becoming less and less appealing these days. As someone who started driving in the 'olden days' I have seen a massive change in road conditions. When it snowed we used to go to a local car park at the back of a Safeway and skid our cars around. When it was closed and everyone had gone of course. The Police used to come watch and allow it to go on if we kept sensible. This isn't apocryphal, but can you imagine that happening today? I was pulled many times and let off in the past, even carrying 110mph on the M5 (for I believed and so did the Police officer at the time good reason) back in the 90's. Ask a normal bobby and many have been nicked by a camera, some often and most have disdain for them. But that is modern motoring and it will only get worse.
Road trips with friends are where I take most pleasure from driving these days. Long distances, often into Europe (ideally with some Autobahns) and then a track at the end. The driving is important and great fun, but not the be all and end all of the trip. Often the track stuff takes second place to the beers in the evening and laughs. Sorry boys and girls, you are pretty much ****** moving forward. The king is dead and not going to longer live!