Duran rejoins Interwetten team

The 24-year-old Mexican contested the last two seasons with the squad, winning twice and finishing in the top ten standings in both years. He has now been drafted back in for this weekend's Nurburgring races and the finale at the new Aragon track in October.

"We are delighted that Salvador is able to drive for us again," said team boss Walter Raus. "We have been very successful with him and want to continue that."

Duran has not competed since the end of this year's A1GP championship, where he had been racing for Team Mexico.

"I am over the moon being able driving the last two races of the World Series for Interwetten," he said. "It won't be easy to be competitive from the very beginning. I haven't been driving this car for a long time, but I'm sure that I will get back my old condition soon."

Interwetten had only run a single car for Michael Herck in the last event at Portimao after previous driver Adrian Zaugg's funding ran out.