I would like a recommendation on winter tires for Roadster 1196 - 2.5 Non Sport. I currently have the Advan Neova 175/55/r16 in the front and Neova Advan 225/45/17 in the rear. I live near Dayton, Ohio and I currently have few questions... What is the preferred winter tires (Front and rear)? Do I need to have Tesla Install them? (Columbus in 65 miles away and no way to transport in roadster) How does it affect the tire pressure sensor system? Do most people buy another set of rims? Can the rims be purchased third party or what are the advantages of using Tesla? I know after installing the tires you have to set the system for new tires. Any other procedures that I'm missing would be great to be discussed. Thank you in advance as I've only had the roadster since 9/27/13. Tried reading through the tire thread and got more confused after reading it.