In assessing value, I think it's tough on the P3/4 that it didn't win LeMans, but neither did the Ferrari GTO which, up until the recent sale of the Uhlenhaut Mercedes 300SLR was the world's most valuable car. (A GTO went for $72 million a few years ago) But from an artist's standpoint, a car need not have won to be the subject of art. The gullwinged 300SLR(his private car made into a gullwing where the racing SLRs were roadsters) sold for 135 million Euro. So it never raced in that form but is arguably the most beautiful Mercedes.