THe dealer should have a list once they read your vin #. I got lucky and the PO kept the window sticker w/ all the options in her owner manual case. I still need to have the dealer read my key/vin to see all the work that has been done to her (dodi).

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2001 X5 3.0i "Dodi"
1993 Range Rover County LWB (71,600 miles) "Bertha"
1991 Range Rover parting out