Yes, those are center lock caps.
I did some testing of the PDK this morning. Started by using the stick shift and getting good with it and then worked up to the paddle shifters. It's takes some getting used to but it's not so bad.
I'm going to enjoy it but not drive it like I stole it. The motor is still in break in period and I want to respect the next owner of this fine automobile. Sorry if that disappoints anyone.
Here's more eye candy.