From Autodiva Forum
By ibsenop at 2009-10-13
(photo des années 2000, par Art Eastman)
Wheels are dull aluminium or anthracite color on my references.
That appears to be poor color reproduction, not blue painted wheels. Perhaps reflecting off the puddles on the pavement?
The 1953 Sebring winning C4R carried race number 57 and was driven by John Fitch and Phil Walters. It is currently owned by Fred Simeone and is on display in his museum in Philadelphia. I was there this past Sunday and got a copy of his wonderful book "The Spirit of Competition", which has color photographs of the cars in the collection. The wheels on the car are a rather dark gray (oxidized?) with the edges of the oval holes and the very outside rim of the wheel polished to a matte silver (not mirror finish). I don't have any color photos of the cars in period that show blue wheels - most appear a uniform dark silver bare magnesium
If I'm not mistaken, didn't the Cunningham racing cars use Halibrand magnesium wheels? Or are they aluminum? Proper mags usually shipped with a coating of Dow 7, which gave the wheels a gold tint like gold anodizing. That said, the photo posted later shows wheels that aren't gold colored, however I don't think they're oxidized either. Oxidized magnesium is usually lighter, and mottled in appearance-those wheels are far too evenly colored to be oxidized (although the lips of the windows are clearly polished). My knowledge ends here-what other coatings would be suitable on a mag wheel?