By Sam TickellAudi were again metronomic in their Le Mans defence, while Dome put in an impressive performanceThe main battle at Le Mans was certainly a Goliath vs Goliath affair. A titanic diesel battle between the French Peugeot and the German Audi squads. But there was more – a petrol battle with Charouz, Oreca and Pescarolo and interlopers to the crown also in the field.