1930 Cadillac V-16 Roadster by Fleetwood 28 December 2016 1930 Cadillac V-16 Roadster by Fleetwood Auction: RM Sotheby’s Arizona 2017 Estimate: $1,000,000 – $1,250,000 sold for a strong $1,100,000 Photo Credit: Trace Taylor ©2016 Courtesy of RM Sotheby’s