Picked my S60D on 12/31. The delivery person casually mentioned "be careful in the winter.. those are summer tires." I was like hold up a second here.. The website said the 21inch wheels come with all season tires. Initially, they agreed that I was correct, however I just got an e-mail from the service department saying that they only come with summer tires. I know I saw it on the Tesla website that they come with "all season" tires. Can you folks chime in?