My Model X P90D came with Goodyear Asymmetric F1's on the 22" Onyx config, but I'm not happy with the ride quality (super harsh) or the range. I do like the color, though. I was thinking of going with the TST 20" matte black wheels, but I'm having a really hard time figuring out what tire is best. Tesla is saying that the Continental CrossContact LX Sport is used as their 20" stock tire, but I've also seen numerous X owners receive the Michelin Latitude Sport 3's for their 20's. To add to the confusion, the manual at one point stated (and some people received) the 255/45 size on the front and 275/45 rear in the Michelins, but now the latest manual says 265/45 front and 275/45 rear. Tirerack only seems to sell the Michelins in 255/45 front and 275/45 rear. I don't care which one it is, i just want to get it right . All of that said, what does everyone think about the Conti CrossContact LX Sport vs the Michelin Latitude Sport 3's, particularly in regards to ride quality, noise, and range?