I am underwhealmed by these tyres. A 330bhp AWD car means that these tyres only have 82bhp each to handle. I am struggling to see where all the grip is that I read about. Outside of summer trackdays, these tyres perform worse than the all-weather Geolanders on my SUV on dry roads, let alone wet roads. I will make no comment on winter/ice/snow grip as summer tyres by definition are not designed to be used below 8 C - more fool to anyone that tries to do so and comes a cropper.
We need to be realistic in that the UK will present wet, cool, and imperfectly surfaced roads to drive on. Again, the Geolanders on my SUV grip massively better than these, are more progressive on breakaway, and are a greater joy to use therein.
Yes, Paradas are cheap - the reason is that they have a very narrow application and trail the market significantly outside the narrow context of 20 C+ track days. My previous Bridgestone RE050As grip better than these tyres in 99% of British driving conditions - and these are not the best or most expensive tyres out there by a long shot.
If you are fitting these to a hobby car that is used 6-8 weeks per year, no problem at all. You'll probably have an SUV/Transit and a trailer and won't mind having to flat bed your track-car to and from the circuit. Similarly, if you are an experienced driver that understands about tyre compounds and tread patterns, sees a bargain and understand what you are getting yourself into, then go right ahead. Just watch out for every man and his dog in front heavy, oil-burning rep-mobiles humilating you on roundabouts.
Would not recommend for anything other than hobby car use. Would not buy again.