I had to buy some tires for my then-very old car and the guy suggested buying lower-priced tires, because, he explained, the main difference is how long they will last, and since my car was old, it didn’t make sense to invest in tires that might last longer than the car. Along with other ratings, one is of the miles they expect the tire to last for, like 40k or 80k.
I got 80,000 mile tires in 2011 or so
But within 8 years they were drying out and rotting
I never had tires do that before