I understand why some of our American friends are turning up their eyes and thinking why are these silly Europeans so interested in a couple of letters next to the tire size. Well, to us it is very important. Driving a car without the proper speed rating is illegal. You can get a fine and have your car impounded. The insurance company can deny any claims. You won‘t get through your vehicle safety inspection either. Believe me, we are not discussing this for fun. Please enjoy your privileges and freedom and hope you don‘t get constraints like we have here in Europe. I‘m restoring two Panteras. Wheels and tires have taken up more time than any other major component. Let’s keep an open and tolerant attitude in our exchanges. Let’s enjoy our great cars. Stay safe.
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?