Once your status 150 all dealer can do is swap the car with another car which may be destined for dealer inventory. However given rareness of M5s that is not very likely with exact option config.
2014 BMW ///M5 Individual Frozen Grey, Silverstone Full Merino, Piano Black, Exec Pkg, Drivers assistance plus, LED Pkg, Bang and Olufsen, 20" 343M Forged Alloy Wheels
Upgrades: Eisenmann Sport with M Performance Carbon tips, Dinan anti-roll bars, Bel StiR+, ALP
2015 Jaguar F-Type R Coupe
2015 Mercedes-Benz C300 Sport