* Le Mans winners travel to São Paulo as leaders of the
standings
* Audi remains unbeaten this season after four LMP victories
in succession
* Lucas di Grassi supports Audi in his home country
Audi is facing a big challenge at round four of the FIA
World Endurance Championship (WEC) in Brazil on September 1. Having claimed
four victories to date – including the Le Mans 24 Hours – the Audi R18 e-tron
quattro has remained unbeaten in the 2013 season. The squad of Head of Audi
Motorsport Dr. Wolfgang Ullrich and Chris Reinke, Head of LMP, is aiming to
continue these results on the demanding race track of São Paulo.