Robert Michael Doornbos (Dutch pronunciation: [ˈroːbərt ˈmɑikəl ˈdoːrnbɔs]; born 23 September 1981) is a Dutch racing driver. He has been test and third driver for the Jordan and Red Bull Racing Formula One teams, as well as driving for Minardi and Red Bull Racing in 2005 and 2006. Doornbos then drove for Minardi Team USA in the 2007 and final season of the Champ Car World Series. He competed in the Superleague Formula racing series in 2008, and drove for the Netherlands team in A1 Grand Prix's 2008–2009 season. In 2009, Doornbos competed in the IndyCar Series. He began the season with Newman/Haas/Lanigan Racing, but switched to HVM Racing after the race in Kentucky Speedway.

Doornbos' first sport was tennis. His interest in motorsport grew after he was invited to the 1998 Belgian Grand Prix as a guest of WilliamsF1. It was 1997 Formula One Champion Jacques Villeneuve who suggested that he should go for a series such as Formula Ford, as he was too big and too old to race karts. He gave up tennis and focused on racing, joining the JR racing team for the 1999 Opel Lotus UK Winter series. He had a successful season, finishing second in the championship after taking four pole positions, four fastest laps and four wins. In 2000, he competed in the Formula Ford Zetec Benelux series, finishing second in the Belgian championship and fifth overall with one pole, three fastest laps and six podiums.

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