Starting number 722: The Holy Grail for any car collector and the most valuable car in the world...the 300 SLR Roadster driven by Stirling Moss in the 1955 Mille Miglia. That is, if Mercedes-Benz were to ever sell it. The 722 300 SLR Roadster driven by Stirling Moss and his co-driver Dennis Jackson in the 1955 Mille Miglia. The car started at 7.22am, April 30, in Brescia and crossed the finish line also in Brescia, ten hours, seven minutes and 48 seconds later. In that time they had driven more than 1,000 miles, to Rome and back in what was a record time and an average speed that was never surpassed: 97.94mph. http://www.dailymail.co.uk/home/moslive/article-2125011/Mercedes-300-SL-This-worlds-expensive-car--If-buy-it.html #Mercedes #mercedesslr #mercedes722 #mercedesslr300 #slr300 #slr #300slr #pebblebeach @highlineautos @petroljunky