Dixon wins shortened Detroit Grand Prix
A red flag halted the event 45 laps into a race that was scheduled for 90 laps and shortened to 60.
Belle Isleís 2.07-mile road course that hadnít hosted a race since 2008 had chunks of asphalt and concrete missing. Pot holes and grooves that were recently filled with tar became exposed. Crews filled the gaps with epoxy that settled enough for the race to resume.
The sprint to the finish was stunted by a caution flag because light rain made a slick track even more slippery. Helio Castroneves spun out as if his car was on a skating rink and finished 17th.
Dixon finished almost 2 seconds in front of teammate Dario Franchitti.
Simon Pagenaud was third, followed by IndyCar points leader Will Power.
, who began as the IndyCar points leader.
Dixon wasnít challenged much before the red flag, building a 10-second lead, on a road course that had just nine lead changes combined in 2007 and 2008.
The first sign of trouble with the track came when James Hinchcliffe lost control because of a huge divot in the road and ran into a tire barrier when he was on lap 39. Hinchcliffe, who had finished among the first six in the previous five races this year, shook his head when he got out of his car and took a look at one of the many problems on the track under the first yellow flag.