I have updated this add - the changes are in RED -- MAKE AN OFFER for either all 4 "Factory" rear wheels or for just two of them. For the RMS Wheels, make an offer for all four including the tires.

The factory wheels are rear wheels that will fit the front too with
3mm spacers (that I will supply.) The wheels are in great shape -- no scratches or roughed-up edges -- however, I had them powdercoated so the shading of the Grey looks a little different -- a little lighter. The tires on the 4 "factory M5 wheels are 275/35s SO-3s all around -- but they are pretty much shot and worthless. I also have to front M5 wheels -- both need to be refinished.
The RMS wheels are staggered in size at: 10x18 for the rear; 8x18 for the fronts. The tires in that setup are
Michelin Pilot Sports -- 295/35 rears and 255/40 fronts (rears have about 2/3 tread, front are literally brand new -- never driven on.)
The RMS wheels is what was run on the car during its Car and Driver road test, so if you save old issues ( think it was May of last year), you can see them there and read what C & D said about the handling..
Also I'll like to sell the Stock M5 exhaust.
Please PM me with either a question or an offer and let me know exactly items or items you are interested in.
Thank you -- Bryan
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Current M5:
2006 E60
Saphire Black
Silverstone Merino Full Leather
12mm front H&R spacers 15mm rears
Previous M5 (sold to DoctorV8):
2001 E39
653 HP/510 lb/ft

Vortec Supercharger
Active Autowerke Air-to-Air Intercooler
Aquamist Water Injection
Supersprint Headers
TubiStyle Exhaust
Koala Motorsports 3.15 ring & pinion
4-wheel Brembos
KW Varient 3 Suspension
Dinan Mono-Ball lower control arm mounts
Dinan Wheels -- powercoated to match OEM wheels
Dinan Rear Subframe reinforcement (from Dinan S3)