World Rally Champion Sebastien Loeb is to take part in the F1 test at Barcelona later this month.
The Frenchman, who secured his fifth successive title at the weekend by winning in Japan, drives for the Red Bull backed Citroen team.
"I already got the chance to test a Formula One car last year but this time the circumstances will be a little different," said Loeb. "I'm now going to find myself in the midst of all the regular Formula One drivers during an official test. I just hope I don't make a fool of myself."