Motor racing-Mercedes 'streamliner' fetches record 51 million euros at auctionbr br A streamlined Mercedes raced by Formula One greats Stirling Moss and Juan Manuel Fangio in 1955 set a record for a grand prix car on Saturday, selling at auction for 51.155 million euros ($53.01 million).br br The sleek, silver W196 R Stromlinienwagen, one of only four complete examples in existence, was sold by RM Sotheby's at the Mercedes museum in Stuttgart, Germany, on behalf of the Indianapolis Motor Speedway (IMS).br br The car had a price estimate of more than 50 million euros and, while the bidding rapidly reached 40 million in 5-million-euro increments, it eased off before a final hammer figure of 46.5 million ($48.2 million). The final price includes the buyers' premium. The buyer was not immediately named.