...and I have some questions and comments:
1] I have 17" web-spoke wheels w/run-flats. No spare, of course. I am looking to get 16" wheels w/snow tires for the winter months, so a) any suggestions, and b) what about a spare? I have the JCW tuning kit and there doesn't seem to be a place for a space-saver because of the exhaust -- am I missing something obvious here?
2] The dealer insisted that the Sport suspension only adds thicker anti-sway bars which keep the car flat when cornering and does not affect the harshness of the ride -- it is the wheel/tire combo that does. True? Also, the tire pressure is 38psi -- the manual implies that would only be for 4 passengers, and that 33psi would be appropriate for 1 or 2 occupants. True?
3] I think I'm one of the few who actually had mud flaps installed; the dealer botched the rears and will be replacing them. I'm having second thoughts 'cause they really offer nothing -- the fronts at least will protect the paint.
4] What's the best way to handle valet parking? I have Comfort Access -- can I leave the electronic key in the 'ignition' and remove the 'hard' key that has my house key etc attached?
Thanks, all, for your comments and insights.....

 

2. tire (runflats) is what is causing the harsh ride. I'm using 34psi as I regularly drive with 1 passenger

3. I installed the mud flaps in the rear and it does a good job of keeping tar/gunk off the rear bumpers.

4. i have comfort access as well and I put the key in the ignition. I didn't want to have to explain the concept of comfort access to the valet. (but I was forced to valet once, will probably not do it again). the hard key is not required to start/drive the car.