The biggest thing the Model S has against it for tire wear (both the 21' and the 19') is the 2° negative camber on the rear wheels when in standard suspension.

The biggest thing the Model S has against it for tire wear (both the 21' and the 19') is the 2° negative camber on the rear wheels when in standard suspension. While that is very useful for improved handling and preventing possible oversteer (especially likely given the huge amount of instant torque), it is hell on the tires. P.S. While I'm an owner, I'm not that much of a car nut, and I am simply regurgitating the information shared by other owners who are car nuts. :)