 Detroit Grand Prix was established on 1963 . The official site of  Detroit Grand Prix is www.hardrock100.com . The no. of events in sport was 18 . 28 July – 3 August 2012 was when it was held . 28 from 28 nations competed in  Detroit Grand Prix . Carioca Arena 2 were the venues of  Detroit Grand Prix . 24 (from 5 confederations) were the number of teams who competed in  Detroit Grand Prix
 Detroit Grand Prix saw a competition between 24 teams 