Ferrari 375 MM Spider
Darin Schnabel/RM Auctions via Bloomberg
A 1953 Ferrari 375 MM Spider. Raced in Argentina in the mid-1950s, it was offered by RM Auctions in a two-day event at Monaco on May 11-12. Estimated at 3.3 million euros ($4.3 million) to 4.1 million euros, it failed to sell. Dealers said that it was not entirely fresh to the market.