Lucas di Grassi signed with Audi for Brazil's first FIA World Endurance Championship (WEC) race, scheduled for September 15.

"We’re giving Lucas di Grassi a chance to compete at home as an ambassador for endurance racing and to fight for overall victory in the Audi R18," explained Dr. Wolfgang Ullrich, head of Audi Motorsport, in a team's press release.

Di Grassi has already sampled an Audi R10 TDI for one of Audi's private teams, Kolles. He also took part in two further tests with another team last year and tried his hand at an R18 ultra at the Lausitzring, earlier this month.

"He left a good impression then, which motivated us to sign him," confirmed Dr. Ullrich.

The Brazilian driver will share the wheel of the No. 2 car with established Audi drivers Tom Kristensen and Allan McNish, but only on his home soil, as the experienced Kristensen-McNish pairing will face the remaining Silverstone, Bahrain, Japan and China rounds as a duo.

"Endurance racing is a fascinating discipline of motorsport which I’ve only experienced in tests so far," admitted di Grassi.

"That’s why I’m particularly excited about my debut in the WEC for Audi alongside two big names like Allan McNish and Tom Kristensen."