Markus Winkelhock, the Spyker Formula 1 test driver, has been called up by Audi to stand in for injured multiple Le Mans winner Tom Kristensen, who is still recovering from a huge accident with Alexandre Premat in Hockenheim. Winkelhock competed in the DTM in 2004 with a year-old car in the DTM before trying to break into F1.

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