Negotiating the Price For a New M3

Negotiating the Price for a M3 is it still possible? The total of the m3 I am looking at is $56,995 Now the accessories now can I discuss their price for them or would it be like the last benz my family bought (c32 amg) they thru in many things because we did not argue on the msrp for example the glove box mounted cd changer the navigation system etc… Also some tips on actually negotiating at a bmw dealership will be useful.
Thanks
:)