The S4 uses lug bolts. They're a little more tricky to mount on the car because you can't stick the wheels on the studs and use the studs to support the weight of the wheel. You have to hold the wheel in the right spot and get a bolt started. You can also buy a
lug bolt guide tool to make it easier.
I didn't realize you were going with 19" wheels. Have you gotten any other quotes?
AH, ok. That answers it for me. I figured they must be a pain in the ass to mount because there is nothing in place to support the wheel/tire while mounting. Thanks for the link on the bolt guide. That'll probably be worth it if I'm changing them over each season.
Yeah I went back and forth on it and decided I liked the look of the 19" sized wheel that comes from the factory but figured it wasn't worth spending on the factory 19" potato peelers. I don't want 19" wheels for the winter, but I don't mind chancing it for the spring/summer/fall. I'm going to see if I can time the wheels with the car arrival like you did and try to keep miles off the OEM summer tires. Then I'll post some ads around and see if anyone is interested in buying the 18" OEM summer tires to recoop some of the cost of the new tires. ModBargain is my first quote, but I haven't committed to anything yet. Elliot said they were on a 2-week back-order right now anyway. I plan to hit up a few of the other online places to see what price they come in for everything like ModBargains. The Michelin's were a main interest for tires, but I'm also considering the Hankoon ventus V12s at a lot less money or even the Continental DW tires. I haven't yet decided if I want to spring for the PSSs. ModBargains seems moderately close at $308/tire + $85/shipping ($1317) to tirerack's price at $298/tire + $49 shipping ($1241). There is some value to be had in just having the tires already mounted/balanced when they get here rather than taking them some place and worrying they'll fuck it up.
Have you decided yet on your wheels? What are your thoughts on summer tires? I know you're looking at the DWS, but what will you do after you use up the OEM summer tires?