Audi one-two victory at WEC round in Brazil

Audi has remained unbeaten in the 2013 sports car season to date. The Audi R18 e-tron quattro hybrid sports car has won the fourth of eight rounds in the FIA World Endurance Championship (WEC). In addition, it claimed victory in the 12-hour classic at Sebring in March. The race weekend in Brazil ended in victory for Marcel Fässler/André Lotterer/Benoît Tréluyer (CH/D/F).