Congratulation....Navigation and sports package
Do you mean Q50S or performance package? I have been curious with this performance package that they said it would be available last Jan.
The manual says about break-in that you are not supposed to drive at constant speed for too long and not going way pass 4000 rpm. I would say at least 1000 miles grandma style driving.
I did not really follow the break-in process myself since I never had a problem with new cars and I find it is a myth. I did take it easy the first 250 miles.