A 1962 Ferrari 250 GTO road racing car is expected to fetch more than $45 million at auction in August, making it the most valuable car ever to be offered for public sale. Auctioneers RM Sothebys said on Wednesday that the red Ferrari was one of just 36 examples of the 250 GTO model built by the famed Italian car maker. The car up for auction in California on Aug. 24-25 won the 1962 Italian National GT Championship and nine other races that year with its first owner-driver, Reuters reported. It has been owned since 2000 by American car collector and Numerix software company chairman Dr. Greg Whitten, who has raced it in vintage events, the auction house said. "The GTO was essentially the final true road racer, marking the end of an era when drivers really got their hands dirty," RM Sothebys car specialist Shelby Myers said in a statement. The auction record for the most valuable car was set in 2014 when another 1962 Ferrari 250 GTO sold for $38.1 million.