Reigning European Le Mans Series champion Gary Hirsch has joined the Beechdean Aston Martin squad for next month's Le Mans 24 Hours.The 29-year-old Swiss, who won the 2015 ELMS together with Jon Lancaster and Bjorn Wirdheim at Greaves Motorsport, will drive Beechdean's Aston Martin Vantage GTE in the World Endurance...