Detroit: #31 Whelen Engineering Racing Cadillac DPi, DPi: Felipe Nasr, Pipo Derani, #6 Acura Team Penske Acura DPi, DPi: Juan Pablo Montoya, Dane Cameron, #7 Acura Team Penske Acura DPi, DPi: Helio Castroneves, Ricky Taylor
#31 Whelen Engineering Racing Cadillac DPi, DPi: Felipe Nasr, Pipo Derani, #6 Acura Team Penske Acura DPi, DPi: Juan Pablo Montoya, Dane Cameron, #7 Acura Team Penske Acura DPi, DPi: Helio Castroneves, Ricky Taylor