I am also confused about the auction flyer. The left-hand drive Rolls were made in the US: In 1921 Rolls-Royce opened a new factory in Springfield, Massachusetts in the United States (to help meet demand) where a further 1,701 "Springfield Ghosts" were built. This factory operated for 10 years, closing in 1931. As for the fenders, check these out: https://www.supercars.net/blog/1926→1931-rolls-royce-springfield-phantom/