Daniel Ricciardo’s role for the 2011 season is not yet clear.
The Australian, at the very top of Red Bull’s junior programme, has been the F1 reserve driver in 2010 and is scheduled to drive the title-winning RB6 in next week’s post-season tests.
But after finishing this year’s Formula Renault 3.5 series in second place, the 21-year-old’s full time role for 2011 has not yet been announced.
Red Bull’s secondary F1 team Toro Rosso has said it is retaining both Sebastien Buemi and Jaime Alguersuari next year.
GP2 might then be seen as the logical next step for Ricciardo.
But Red Bull’s motor sport consultant Helmut Marko admitted to Auto Motor und Sport: "We still don’t know what we are going to do with him next year."