28 July – 3 August 2012 was when it was held .  Detroit Grand Prix was established on 1963 . The official site of  Detroit Grand Prix is www.hardrock100.com . 24 (from 5 confederations) were the number of teams who competed in  Detroit Grand Prix . 28 from 28 nations were the competitors in  Detroit Grand Prix . Carioca Arena 2 were the venues of  Detroit Grand Prix . 18 events were there in  Detroit Grand Prix
The number of squad in the sport  Detroit Grand Prix is 24