2012 650xi demo

My dealer called me today about a demo 2012 650xi coupe. How much discount should I ask them on MSRP?

Options are as below:

LX53 - 650i xDrive Coupe
SP-BLD - No Charge Scheduled Maintenance 4yr/80k
ZBM - M Sport Package
- 20inch Performance Wheel, RFT Tire (Style 373M)
- M Sport Package
- High Gloss Shadow Line
- High Speed Maximum
- Comfort Seats Front
ZBT - Technology Package
- High-Beam Assistant
- Lane Departure Warning
- Active Blind Spot Detection
- Active Cruise Control w/ Stop & Go (Not Available
as a Stand Alone Option)
ZFJ - Executive Package
- Soft Close Doors
- Rear View Camera
- Electric Rear Sunshade
- Contrast Stitching
- Leather Instrument Panel
- Ceramic Control
- Surround View
- Head-Up Display
- SIRIUS Satellite Radio Tuner
- HiFi Sound System Professional
ZOR - Premium Seating Package (w ZBM)
- Ventilated Seats
- Active Seat for Driver and Front Passenger
- Comfort Seats Front
***65532;- Dakota Leather
***65532;MET - Metallic Paint
***65532;LEA-NP - Nappa Leather
***65532;552 - Active LED Headlights
***65532;6F2 - Bang and Olufsen Sound System (w ZFJ)