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David Donohue (born January 5, 1967 in Morristown, New Jersey) is an American race car driver currently active in the Grand-Am's Rolex Sports Car Series Daytona Prototype class for Action Express.
He competed in Formula 1600, Formula 2000, Champcar Light, Formula Renault, Formula Vauxhall Junior, Touring car, Spec Racer, Formula Atlantic, and Daytona Prototypes, and competed at circuits including Silverstone, Magny Cours, Daytona Speedway, Mont Tremblant and Gilles Villeneuve.
Winning the race overall was the Daytona Prototype team of Chip Ganassi Racing, with drivers Scott Pruett, Memo Rojas, Graham Rahal and Joey Hand driving the #01 Riley & Scott-BMW defeating Chip Ganassi Racing's second team, consisting of IndyCar drivers Scott Dixon and Dario Franchitti, and Sprint Cup teammates Jamie McMurray and Juan Pablo Montoya in the #02 Riley & Scott-BMW by just over two seconds in a one-lap sprint following a late caution flag.
Grala has been a Daytona Prototype driver since the class debuted in the 2003 Rolex 24 Hours of Daytona.
On June 22, 2003 Grala had his first podium finish in a Daytona Prototype at his home track in Watkins Glen, New York.
Teamed with Alex Gurney, the pairing combined for a series-record seven wins and ten poles in 2007, en route to the Daytona Prototype drivers' championship.
In 2008, Taylor disputed the 24 Hours of Daytona for the Grand-Am series with a Riley-Pontiac of Daytona Prototype class of Wayne Taylor Racing, resulting fifth with Max Angelelli, Michael Valiante and her father Wayne Taylor.