How is the tire rating determined for the car? Is there a government list specifying the required rating? Do police pull you over to check your tires?
There are portions of Nevada and Ohio where there is no day time speed limit. Rt 80 in Ohio was/is one. No one checks your tires.
Probably around 100mph is about all you can expect to do safely do to road design and traffic conditions. At higher speeds you just can't look far enough down the road to go faster safely.
I can just envision Giorgio in his Fiat Punta pulling out in front of you? I'm sure he'd have his driving gloves and shoes on though?
I do not agree, speed is a matter of habit, when I drove a lot I was very relaxed up to more than 250 km / h because I often drove at this speed, at night on highways in perfect condition and with little traffic. Now that I drive a lot less, and that I'm old , I find that 200 km/h is already very fast.