Rinus VeeKay - Ed Carpenter Racing - Acura Grand P… Jack Harvey - Meyer Shank Racing - Acura Grand Pri… Scott McLaughlin - Team Penske - Acura Grand Prix… Max Chilton - Carlin Motorsport - Acura Grand Prix… Jimmie Johnson - Chip Ganassi Racing - Acura Grand… Ed Jones - Dale Coyne Racing - Acura Grand Prix of… Ryan Hunter-Reay - Andretti Autosport - Acura Gran… Marcus Ericsson - Chip Ganassi Racing - Acura Gran… Romain Grosjean - Andretti Autosport - Acura Grand… Sébastien Bourdais - A.J. Foyt Enterprises - Acur… Alex Palou - Chip Ganassi Racing - Acura Grand Pri… Callum Ilott - Juncos Hollinger Racing - Acura Gra… James Hinchcliffe - Andretti Autosport - Acura Gra… Patricio O'Ward - Arrow McLaren SP - Acura Grand P… Simon Pagenaud - Team Penske - Acura Grand Prix of… Scott Dixon - Chip Ganassi Racing - Acura Grand Pr… Dalton Kellett -A.J. Foyt Enterprises - Acura Gra… Takuma Sato - Rahal Letterman Lanigan Racing - Acu… Oliver Askew - Rahal Letterman Lanigan Racing - Ac… Graham Rahal - Rahal Letterman Lanigan Racing - Ac… Felix Rosenqvist - Arrow McLaren SP - Acura Grand… Charlie Kimball -A.J. Foyt Enterprises - Acura Gr… Hélio Castroneves - Meyer Shank Racing - Acura Gra… McLaren MCL-33 (2018) Turn 6 Overtake - Acura Grand Prix of Long Beach Colton Herta - Andretti Autosport - Acura Grand Pr… Alexander Rossi - Andretti Autosport - Acura Grand… Joseph Newgarden - Team Penske - Acura Grand Prix… Conor Daly - Ed Carpenter Racing - Acura Grand Pri… Mario Andretti Drives Whelen Engineering Racing Cadillac DPi-V.R Cadillac Chip Ganassi Racing Cadillac DPi-V.R Mustang Sampling Racing/JDC-Miller MotorSports Cad… WeatherTech Racing Porsche 911 RSR-19 GRT Grasser Racing Team Lamborghini Huracán GT3 Ev… GRT Grasser Racing Team Lamborghini Huracán GT3 Ev… Vasser Sullivan Lexus RC F GT3 Paul Miller Racing Lamborghini Huracán GT3 Evo Scuderia Corsa Ferrari 488 GT3 Evo Heart of Racing Aston Martin Vantage GT3 Mazda Motorsports Mazda RT24-P DPi Meyer Shank Racing Acura ARX-05 DPi Gradient Racing Acura NSX GT3 Evo Pfaff Motorsports Porsche 911 GT3.R Konica Minolta Acura ARX-05 DPi