Claim: In 2017 SprintX GT Championship Series includes seven teams and some of the teams were United_States VOLT Racing, United_States TRG-AMR (Aston Martin Racing) and United_States PF Racing.
Evidence: United_States VOLT Racing United_States TRG-AMR Aston Martin Vantage GT4 United_States GMG Racing United_States Case-it Racing United_States Stephen Cameron Racing United_States PF Racing United_States NOLAsport