I have bought a car recently that is capable of 185mph and the dealer I bought from had budget tyres fitted ie not rated for speeds over 120 mph.
I had a blow out in Germany over the weekend at 160 mph and it nearly killed myself and a friend. The budget tyre got too hot and blew out, damaging the wheel to.
He quoted good tyres
No I did not but if you sell a car with nearly 500 bhp it should have tyres rated for the speed the vehicle can achieve.