Grand-Am/NASCAR: Doubleheader in Daytona

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From Grand-Am Communications; JJ O'Malley Grand-Am Road Racing and NASCAR have announced a unique combination for July 4, when the Grand-Am Rolex Sports Car Series and the NASCAR Sprint Cup Series will compete on the same day at Daytona International Speedway.The Brumos Porsche 250 will take the green flag that Saturday afternoon, followed by the Coke Zero 400 Powered By Coca-Cola at 8 p.m.Previously, the Brumos Porsche 250 was held on Thursday evening of the July 4 weekend. It will remain a one-day event, with practice and qualifying Saturday morning.The Brumos Porsche 250 is the seventh of 12 events on the 2009 Rolex Series schedule, which opened with the 47th running of the Rolex 24 At Daytona on Jan. 24-25.Donohue held off Juan Pablo Montoya by .167 seconds to win in the closest finish in the history of major international 24-hour motorsports events, while TRG Porsches scored a one-two sweep in the GT class.