Neither, get All Weather, I have owned 3 Model S's. (two were RWD), no issues in this area with quality A/S tires. My son has these on his Miata and it even does well (with a few cases of water thrown in for weight. Just get a tire with
3PMSF and you will be fine.
QUATRAC 5
WINTER - 45 DEGREES AND BELOW
Dedicated Winter tires are made for harsh conditions, allowing for superior grip in snow and ice in the extreme northern regions. Winter tires display the 3PMSF symbol to show their snow capabilities, provided by a softer tread compound. Due to their composition, they need to be swapped in warmer weather to an all-season, or all-weather tire to
extend their lifespan.
ALL WEATHER - ABOVE AND BELOW 45 DEGREES
All weather tires are designed to excel in snow and slush winter conditions and can be a convenient option if you want to avoid switching to winter tires in the fall and replacing them in the spring. They are 3PMSF marked to display their snow handling in the winter. They are also year-round capable, and are great for Northeastern states, mountainous areas, and Northern Pacific regions that frequently see snowfall.
ALL SEASON - 45 DEGREES AND ABOVE
All season tires are made to handle year-round use and are extremely effective in the warmer regions like the Southeast, and southwest, that rarely see snow, but need to be
able to get through mild winter conditions. All season tires have a longer lifespan and offer a higher level of wet and dry road performance.
SUMMER - ABOVE 45 DEGREES
These tires offer the highest level of performance for enthusiasts. The soft tread compound provides maximum grip but will need to be swapped for a winter capable tire in colder conditions, due to their composition.