but, like treadwear numbers, tire dimensions vary across manufacturers as well.
I am trying to leverage this on the HellKitty. It needs a 315mm 200 tire that runs extra wide. Up until this year I could have used a 325mm and been laughing, but they adjusted the base points for my class.
This Camaro is probably just going to end up in the "prepared" class like my Buick was because it needs so much work to be brought into the 21st Century. R compound tires will be a non-starter as we won't want to do tire swaps all summer long.
Still needs to be daily drivable.