call them out on it - MB tried this with me b/c I specified a delivery date to coincide with my lease. They were just going to let my car sit at the port for a month - i called them on it and they gave me $1k off to make up for it.
2001 e46 330ci, 2002 e46 M3, 2013 F10 M5 - GONE
2016 991.1 911 Carrera GTS
2016 F85 X5M - Carbon Black/Mugello Red