Brazilian di Grassi, 29, has been a member of the German manufacturer's World Endurance Championship line-up since late last year and finished third at the Le Mans 24 Hours sharing an R18 e-tron quattro with Marc Gene and Oliver Jarvis.He made 19 grand prix starts for Virgin in 2010 with...

Audi will give ex-Formula 1 driver Lucas di Grassi and Formula Renault 3.5 race winner Nico Muller DTM tests at Spielberg this week.Brazilian di Grassi, 29, has been a member of the German manufacturer's World Endurance Championship line-up since late last year and finished third at the Le Mans 24...