I had an interesting encounter with America's Tire (aka Discount Tire Direct). My car came with the aeros, and I inquired in person about getting a quote for tires in size 235/40/19 since I'm upgrading to 19" wheels. I specifically asked for the OEM Continentals (ProContact RX) that come with the optional 19" sport wheel package, which, as you all know, are also listed in the owner's manual. However, they said they couldn't sell it to me because it doesn't match the load rating that my car came with with my aeros, which are 98W...while the Continentals, and the rest of the 235/40 sizes they sell for that matter, are rated 96W and lower. I kept explaining to the rep that these Continentals I'm interested in buying are the exact same tires that Tesla puts on the model 3s with the sport wheel upgrades, and that it's even listed on my owner's manual. But they cannot and are not willing to sell me the tires because they don't match the load rating that's on my door jamb. They said that the only way they would sell me the tires is to ask Tesla to switch out the door jamb label (which i'm not even sure is possible?), or I go with 245/40 size at minimum. I have never experienced this before because I've never gone one size up with aftermarket wheels, so this is so frustratingly bizarre. I specifically opted not to upgrade to the 19 sport wheels when I ordered my car because I knew I would eventually go this direction and get lighter aftermarket 19" wheels anyway. Has anyone else experienced this when upgrading from 18s to a larger size, or just going one size up on any of your current or previous cars in general? I know I can go with other tire shops, but I have had really good experience with AT with my previous car, and I was hoping to take advantage of their promotions and financing options.