This rare German race-car was created when Adolf Hitler demanded designers build a car to rival Britain's Bentley.
The 1939 Auto Union D-Type went on to win the 1934 Belgrade Grand Prix and is set to become the most expensive car ever to be sold at auction.
Hitler, angry that Germany had no decent rival to the Bentley, promised 500,000 reichmarks to the constructor who could build a race car ready for the 1934 season.
The 1939 Auto Union D-Type won the 1939 Belgrade Grand Prix at the hands of driver Nuvolari. It is to be sold by Christies in Paris next February. Experts expect it to fetch in the region of £6 million, (US$11.6 million euro8.8 million).