Picked up an NM35 ARX a while back, it seems to have a few uncommon options. Having a look at the Stagea options catalogue the original buyer ticked a whole bunch from it.
Ones i haven't seen around much would be:
Moveable spotlight in the boot area, there's two sockets for it, one in the tailgate and one on the roof
Covers on each side of the rear number plate
"Wind deflector" on the rear window (I guess to match the ones on the side windows)
Metal boot strip
12v power socket in the back and 100v "multi socket" in the front (not sure how rare these are)
Other more common options on it:
Folding / Dipping indicator mirrors
Woodgrain console / shifter
Reverse camera, front and rear parking sensors
Chrome door handles
Radar cruise
Cheers
Cam