Porsche will attempt to hedge its bets in the World Endurance Championship LMGTE Pro class after revising the driver line-ups of its two cars.

Porsche began the season with Joerg Bergmeister and Patrick Pilet in the #91 911 RSR, while Frederic Makowiecki and Marc Holzer teamed up in the #92 machine.

However, from round four at the Circuit of the Americas, Pilet will switch to the #92 car alongside fellow Frenchman Makowiecki, while Bergmeister will be joined full-time by Richard Lietz, who has assisted the team in the endurance events.

Related Articles

Holzer - who stepped up to a full-time drive with Porsche this season - will revert to test and development driver for the manufacturer.

"We reshuffled the driver line-up in the 911 RSRs for tactical reasons. This puts us in a very good position for the remaining races of the season and our campaign for the World Endurance Championship title," says Porsche Head of Motorsport Hartmut Kristen. "Marco Holzer is an excellent test driver. He will support us for the rest of the season as a development driver for future factory and customer racing vehicles."

Of the quartet, Makowiecki is best placed in the GTE Pro standings, currently joint second with erstwhile team-mate Holzer, 27 points behind the AF Corse Ferrari of Gianmaria Bruni and Toni Vilander.

Meanwhile, with Lietz suffering a broken arm in an accident during the recent United SportsCar Championship round, British driver Nick Tandy has been placed on standby to join Bergmeister in Austin.