Yesterday my wife and I configured her Model S Signature at the Santana Row Tesla store. She opted for the Performance model in pearl white with carbon fiber trim to make it look sportier. It was interesting that this fully optioned "$50K" car had an out-the-door price that was only $4000 less than the "$100K" Karma.
We were #672 on the Signature reservation list and delivery is scheduled for September. In two weeks she will get the opportunity for a test drive at the Fremont factory. I will be away, but our son is happy to go in my place.