Here an idea why not save the money and focus on improving quality and performance or special loyalty rewards promotion. I have owned 6 BMW of which 3 have been ///M and if it was not for my forum friends I would have been screwed by my local dealer on pricing.
Just a thought.
08 BMW X5 3.0si Space Grey
14 Lexus GX460
11 BMW M3 JZB ZCP 6MT, 02 BMW M3 Conv 6MT & 02 BMW M3 Coupe 6MT