I have a set of Signature wheels coming which I plan to swap the factory PS4S onto and I've been looking for a tire to put on the 21" Arachnid wheels for winter. Note, it's almost certain the car will never be driven in snow or ice conditions. This is only to avoid running the factory summer tires in temps under 40*. I'm in Dallas so on occasion we can get some substantial winter weather. I tried ordering the 19" winter wheel and tire setup but Tesla website told me I didn't have an applicable vehicle and now it's out of stock. So, can't rely on Tesla here. I was suggested MYP tires, Michelin AS4s which are fairly similar diameter to the stock tires. Any input appreciated!