the dealer should have given you a little accessories booklet when you bought the car. I don't recall seeing a bra for the R though...
I'm sure you could just walk into any MB dealer and ask for the accessories booklet for the R.
Clear bra is definitely the way to go. We have this on 4 of our MB vehicles and it provides the ultimate in paint and headlight protection. A new product has come out to eliminate windshield pitting as well. If you live in the SF Bay area and in the Central Valley, contact this quality installer Kenn at CS Mobile Specialties (209) 747-5955. Like window tint, good film and a bad install equals poor results.
__________________ '06 R350 Desert Silver w/Macadamia interior iPod Kit/Parktronic/Rear Side Airbags 317 Comfort Package Auto-dimming mirrors, Memory Seats/mirrors, Power folding mirrors & steering colomn, Cargo cover & Net 326 Premium Package harman/kardon LOGIC7 system, Rear Audio Controls, 6-Disc CD Changer, Panoramic Roof, Power tailgate, DVD Navigation, Tele-Aid 864 RSES Package 7" screens, Auxillary for external sources, 2nd Row Console 19" 5-Spoke wheels 255/50 tires SprintBooster Power Converter