Buying another set of high-cost low-life performance tires isn't a requirement of any Model S trims, is it? You could replace them with some ordinary all-season tires when the included ones wear out?
They're an unusual size, and you want the run-flat version since there's no spare, so the cheapest option seems to be about $2000 / set. Anyway, I like the ridiculous acceleration (3.7 seconds 0-60 MPH quoted) you get with the very soft compound.
