I would like to know if the 18" AMG Monoblocks found on the S500 Grand Edition are available in a high gloss machine finish. If so, where can I get them? I searched tirerack and only found the factory finish and chrome finish. I like the look of the chrome but think they look too small on the car. I thought of going up to 19 or 20 but do not want to sacrafice ride quality. The factory finish are too dull, in my opinion. I would really like to get these wheels in a high polish finish. Any help would be appreciated.