Well until now, getting a good winter tire for the Model 3 Performance was complicated and you had to go third party. It is out of stock now, but the new Model 3 19” Gemini Wheel is the factory answer.
These are what are used in China for Model 3 and they pack 19” snow tires, so an ideal solution for $3,500 installed. Of course they are out of stock, so you can also get the EV01+ but these are shipped from Canada and the aero inserts should now be available.e