# 2017 IMSA SportsCar Championship

The 2017 IMSA SportsCar Championship (known for sponsorship reasons as the 2017 IMSA WeatherTech SportsCar Championship) was the 47th season of the International Motor Sports Association (IMSA) GT Championship that traces its lineage to the 1971 IMSA GT Championship. It was the fourth season of the United SportsCar Championship and second under the name as the IMSA SportsCar Championship. It began on 28 January with the 24 Hours of Daytona, and ended on 7 October with the Petit Le Mans.

## Classes

The class structure remained largely unchanged from 2016, with the major change coming in Daytona Prototype international (DPi) which replaced Daytona Prototype (DP) machinery.
* Prototype (P) (DPi and LMP2)
* Prototype Challenge (PC)
* GT Le Mans (GTLM)
* GT Daytona (GTD)

## Schedule
### Race schedule

The 2017 schedule was released on 5 August 2016 and features twelve rounds.
| Rnd. | Race | Length | Classes | Circuit | Location | Date |
| 1 | Rolex 24 at Daytona | 24 hours | All | Daytona International Speedway | Daytona Beach, Florida | January 28–29 |
| 2 | Mobil 1 Twelve Hours of Sebring | 12 hours | All | Sebring International Raceway | Sebring, Florida | March 18 |
| 3 | BUBBA Burger Sports Car Grand Prix at Long Beach | 1 hour 40 minutes | P, GTLM, GTD | Long Beach Street Circuit | Long Beach, California | April 8 |
| 4 | Advance Auto Parts Sportscar Showdown | 2 hours 40 minutes | All | Circuit of the Americas | Austin, Texas | May 6 |
| 5 | Chevrolet Sports Car Classic | 1 hour 40 minutes | P, PC, GTD | The Raceway on Belle Isle | Detroit, Michigan | June 3 |
| 6 | Sahlen's Six Hours of The Glen | 6 hours | All | Watkins Glen International | Watkins Glen, New York | July 2 |
| 7 | Mobil 1 SportsCar Grand Prix | 2 hours 40 minutes | All | Canadian Tire Motorsport Park | Bowmanville, Ontario | July 9 |
| 8 | Northeast Grand Prix | 2 hours 40 minutes | GTLM, GTD | Lime Rock Park | Lakeville, Connecticut | July 22 |
| 9 | Continental Tire Road Race Showcase | 2 hours 40 minutes | All | Road America | Elkhart Lake, Wisconsin | August 6 |
| 10 | Michelin GT Challenge at VIR | 2 hours 40 minutes | GTLM, GTD | Virginia International Raceway | Alton, Virginia | August 27 |
| 11 | America's Tire 250 | 2 hours 40 minutes | P, GTLM, GTD | Mazda Raceway Laguna Seca | Monterey, California | September 24 |
| 12 | Motul Petit Le Mans | 10 hours | All | Road Atlanta | Braselton, Georgia | October 7 |

### Calendar changes

* The dates of the Laguna Seca and Circuit of the Americas rounds were exchanged.
* PC was removed from the lineup at the Long Beach, Lime Rock and Laguna Seca rounds in what was intended to be the final season for the class.
* GTD was added to the lineup at Long Beach.

### Television Coverage

The first 3 hours of the 24 Hours of Daytona and Long Beach were broadcast on Fox. The other rounds were all broadcast on Fox Sports 1, Fox Sports 2, and Fox Sports GO.

## Entries
### Prototype

The Prototype class is made up of LMP2 cars both in LMP2 trim, with the ACO specification Gibson V8 engine, and in Daytona Prototype international (DPi) trim, where manufacturers are allowed to alter certain body panels designed to reflect the automaker's design language, and run their own engines. Mazda (Riley Technologies), Cadillac (Dallara), and Nissan (Onroak Automotive) run chassis from the respective constructors featuring manufacturer-specific bodywork.
| Team | Chassis | Engine | No. | Drivers | Rounds |
| Tequila Patrón ESM | Nissan Onroak DPi | Nissan VR38DETT 3.8 L Turbo V6 | 2 | Ryan Dalziel | All |
| Tequila Patrón ESM | Nissan Onroak DPi | Nissan VR38DETT 3.8 L Turbo V6 | 2 | Scott Sharp | All |
| Tequila Patrón ESM | Nissan Onroak DPi | Nissan VR38DETT 3.8 L Turbo V6 | 2 | Pipo Derani | 1–2, 6 |
| Tequila Patrón ESM | Nissan Onroak DPi | Nissan VR38DETT 3.8 L Turbo V6 | 2 | Brendon Hartley | 1, 12 |
| Tequila Patrón ESM | Nissan Onroak DPi | Nissan VR38DETT 3.8 L Turbo V6 | 22 | Johannes van Overbeek | All |
| Tequila Patrón ESM | Nissan Onroak DPi | Nissan VR38DETT 3.8 L Turbo V6 | 22 | Ed Brown | 1–5 |
| Tequila Patrón ESM | Nissan Onroak DPi | Nissan VR38DETT 3.8 L Turbo V6 | 22 | Bruno Senna | 1–2, 6, 12 |
| Tequila Patrón ESM | Nissan Onroak DPi | Nissan VR38DETT 3.8 L Turbo V6 | 22 | Brendon Hartley | 1–2 |
| Tequila Patrón ESM | Nissan Onroak DPi | Nissan VR38DETT 3.8 L Turbo V6 | 22 | Pipo Derani | 7, 9, 11–12 |
| Mustang Sampling Racing Whelen Engineering Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 5 | João Barbosa | All |
| Mustang Sampling Racing Whelen Engineering Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 5 | Christian Fittipaldi | All |
| Mustang Sampling Racing Whelen Engineering Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 5 | Filipe Albuquerque | 1–2, 6, 12 |
| Mustang Sampling Racing Whelen Engineering Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 31 | Dane Cameron | All |
| Mustang Sampling Racing Whelen Engineering Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 31 | Eric Curran | All |
| Mustang Sampling Racing Whelen Engineering Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 31 | Mike Conway | 1–2, 12 |
| Mustang Sampling Racing Whelen Engineering Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 31 | Seb Morris | 1 |
| Mustang Sampling Racing Whelen Engineering Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 31 | Filipe Albuquerque | 6 |
| Team Penske | Oreca 07 | Gibson GK428 4.2 L V8 | 6 | Hélio Castroneves | 12 |
| Team Penske | Oreca 07 | Gibson GK428 4.2 L V8 | 6 | Juan Pablo Montoya | 12 |
| Team Penske | Oreca 07 | Gibson GK428 4.2 L V8 | 6 | Simon Pagenaud | 12 |
| Wayne Taylor Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 10 | Jordan Taylor | All |
| Wayne Taylor Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 10 | Ricky Taylor | All |
| Wayne Taylor Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 10 | Max Angelelli | 1 |
| Wayne Taylor Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 10 | Jeff Gordon | 1 |
| Wayne Taylor Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 10 | Alex Lynn | 2 |
| Wayne Taylor Racing | Cadillac DPi-V.R | Cadillac 6.2 L V8 | 10 | Ryan Hunter-Reay | 12 |
| Rebellion Racing | Oreca 07 | Gibson GK428 4.2 L V8 | 13 | Nick Heidfeld | 1–2, 12 |
| Rebellion Racing | Oreca 07 | Gibson GK428 4.2 L V8 | 13 | Sébastien Buemi | 1–2 |
| Rebellion Racing | Oreca 07 | Gibson GK428 4.2 L V8 | 13 | Neel Jani | 1–2 |
| Rebellion Racing | Oreca 07 | Gibson GK428 4.2 L V8 | 13 | Stéphane Sarrazin | 1 |
| Rebellion Racing | Oreca 07 | Gibson GK428 4.2 L V8 | 13 | Mathias Beche | 12 |
| Rebellion Racing | Oreca 07 | Gibson GK428 4.2 L V8 | 13 | Gustavo Menezes | 12 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | Tom Kimber-Smith | 1–3 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | José Gutiérrez | 1–2, 4, 6, 9, 11–12 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | Mike Guasch | 1–2 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | R. C. Enerson | 1 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | Will Owen | 3 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | Marco Bonanomi | 4 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | Kenton Koch | 5 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | Ryan Lewis | 5 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | Olivier Pla | 6, 9, 11–12 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | Nicholas Boulle | 7 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | David Ostella | 7 |
| PR1/Mathiasen Motorsports | Ligier JS P217 | Gibson GK428 4.2 L V8 | 52 | Julien Canal | 12 |
| Mazda Motorsports | Mazda RT24-P | Mazda MZ-2.0T 2.0 L Turbo I4 | 55 | Jonathan Bomarito | 1–7 |
| Mazda Motorsports | Mazda RT24-P | Mazda MZ-2.0T 2.0 L Turbo I4 | 55 | Tristan Nunez | 1–7 |
| Mazda Motorsports | Mazda RT24-P | Mazda MZ-2.0T 2.0 L Turbo I4 | 55 | Spencer Pigot | 1–2, 6 |
| Mazda Motorsports | Mazda RT24-P | Mazda MZ-2.0T 2.0 L Turbo I4 | 70 | Tom Long | 1–7 |
| Mazda Motorsports | Mazda RT24-P | Mazda MZ-2.0T 2.0 L Turbo I4 | 70 | Joel Miller | 1–7 |
| Mazda Motorsports | Mazda RT24-P | Mazda MZ-2.0T 2.0 L Turbo I4 | 70 | James Hinchcliffe | 1 |
| Mazda Motorsports | Mazda RT24-P | Mazda MZ-2.0T 2.0 L Turbo I4 | 70 | Marino Franchitti | 2, 6 |
| DragonSpeed | Oreca 07 | Gibson GK428 4.2 L V8 | 81 | Loïc Duval | 1 |
| DragonSpeed | Oreca 07 | Gibson GK428 4.2 L V8 | 81 | Ben Hanley | 1 |
| DragonSpeed | Oreca 07 | Gibson GK428 4.2 L V8 | 81 | Henrik Hedman | 1 |
| DragonSpeed | Oreca 07 | Gibson GK428 4.2 L V8 | 81 | Nicolas Lapierre | 1 |
| JDC-Miller MotorSports | Oreca 07 | Gibson GK428 4.2 L V8 | 85 | Mikhail Goikhberg | All |
| JDC-Miller MotorSports | Oreca 07 | Gibson GK428 4.2 L V8 | 85 | Stephen Simpson | All |
| JDC-Miller MotorSports | Oreca 07 | Gibson GK428 4.2 L V8 | 85 | Chris Miller | 1–2, 6, 12 |
| JDC-Miller MotorSports | Oreca 07 | Gibson GK428 4.2 L V8 | 85 | Mathias Beche | 1 |
| VisitFlorida Racing | Riley Mk. 30 1–7 Ligier JS P2179–12 | Gibson GK428 4.2 L V8 | 90 | Marc Goossens | 1–2, 4–12 |
| VisitFlorida Racing | Riley Mk. 30 1–7 Ligier JS P2179–12 | Gibson GK428 4.2 L V8 | 90 | Renger van der Zande | 1–2, 4–12 |
| VisitFlorida Racing | Riley Mk. 30 1–7 Ligier JS P2179–12 | Gibson GK428 4.2 L V8 | 90 | René Rast | 1–2 |
| VisitFlorida Racing | Riley Mk. 30 1–7 Ligier JS P2179–12 | Gibson GK428 4.2 L V8 | 90 | Jonathan Bomarito | 12 |

### Prototype Challenge

All entries use an Oreca FLM09 chassis powered by a LS3 6.2 L V8 engine.
| Team | No. | Drivers | Rounds |
| Starworks Motorsport | 8 | Chris Cumming | 1 |
| Starworks Motorsport | 8 | John Falb | 1 |
| Starworks Motorsport | 8 | Ben Keating | 1 |
| Starworks Motorsport | 8 | Remo Ruscitti | 1 |
| Starworks Motorsport | 8 | Robert Wickens | 1 |
| Starworks Motorsport | 8 | Garett Grist | 2 |
| Starworks Motorsport | 8 | Max Hanratty | 2 |
| Starworks Motorsport | 8 | Sean Rayhall | 2 |
| Starworks Motorsport | 88 | Conor Daly | 1 |
| Starworks Motorsport | 88 | James Dayson | 1 |
| Starworks Motorsport | 88 | Scott Mayer | 1 |
| Starworks Motorsport | 88 | Alex Popow | 1 |
| Starworks Motorsport | 88 | Sean Rayhall | 1 |
| BAR1 Motorsports | 20 | Don Yount | All |
| BAR1 Motorsports | 20 | Buddy Rice | 1–2, 4, 6, 9, 12 |
| BAR1 Motorsports | 20 | Mark Kvamme | 1–2 |
| BAR1 Motorsports | 20 | Chapman Ducote | 1 |
| BAR1 Motorsports | 20 | Gustavo Yacamán | 1 |
| BAR1 Motorsports | 20 | Daniel Burkett | 2, 6, 12 |
| BAR1 Motorsports | 20 | Ryan Lewis | 5, 7 |
| BAR1 Motorsports | 26 | David Cheng | 1 |
| BAR1 Motorsports | 26 | Trent Hindman | 1 |
| BAR1 Motorsports | 26 | Adam Merzon | 1 |
| BAR1 Motorsports | 26 | Johnny Mowlem | 1 |
| BAR1 Motorsports | 26 | Tom Papadopoulos | 1 |
| BAR1 Motorsports | 26 | Gustavo Yacamán | 2, 6, 9 |
| BAR1 Motorsports | 26 | Marc Drumwright | 2 |
| BAR1 Motorsports | 26 | Chapman Ducote | 2 |
| BAR1 Motorsports | 26 | Colin Thompson | 2 |
| BAR1 Motorsports | 26 | Nicholas Boulle | 4 |
| BAR1 Motorsports | 26 | Stefan Wilson | 4 |
| BAR1 Motorsports | 26 | Tomy Drissi | 5, 12 |
| BAR1 Motorsports | 26 | Bruno Junqueira | 5 |
| BAR1 Motorsports | 26 | Brian Alder | 6 |
| BAR1 Motorsports | 26 | Derek Jones | 6 |
| BAR1 Motorsports | 26 | Garett Grist | 7, 12 |
| BAR1 Motorsports | 26 | James Vance | 7 |
| BAR1 Motorsports | 26 | Mark Kvamme | 9 |
| BAR1 Motorsports | 26 | John Falb | 12 |
| Performance Tech Motorsports | 38 | James French | All |
| Performance Tech Motorsports | 38 | Patricio O'Ward | All |
| Performance Tech Motorsports | 38 | Kyle Masson | 1–2, 6, 12 |
| Performance Tech Motorsports | 38 | Nicholas Boulle | 1 |

### GT Le Mans

| Team | Chassis | Engine | No. | Drivers | Rounds |
| Corvette Racing | Chevrolet Corvette C7.R | Chevrolet LT5.5 5.5 L V8 | 3 | Antonio García | All |
| Corvette Racing | Chevrolet Corvette C7.R | Chevrolet LT5.5 5.5 L V8 | 3 | Jan Magnussen | All |
| Corvette Racing | Chevrolet Corvette C7.R | Chevrolet LT5.5 5.5 L V8 | 3 | Mike Rockenfeller | 1–2, 12 |
| Corvette Racing | Chevrolet Corvette C7.R | Chevrolet LT5.5 5.5 L V8 | 4 | Oliver Gavin | All |
| Corvette Racing | Chevrolet Corvette C7.R | Chevrolet LT5.5 5.5 L V8 | 4 | Tommy Milner | All |
| Corvette Racing | Chevrolet Corvette C7.R | Chevrolet LT5.5 5.5 L V8 | 4 | Marcel Fässler | 1–2, 12 |
| BMW Team RLL | BMW M6 GTLM | BMW 4.4 L Turbo V8 | 19 | Bill Auberlen | 1 |
| BMW Team RLL | BMW M6 GTLM | BMW 4.4 L Turbo V8 | 19 | Augusto Farfus | 1 |
| BMW Team RLL | BMW M6 GTLM | BMW 4.4 L Turbo V8 | 19 | Alexander Sims | 1 |
| BMW Team RLL | BMW M6 GTLM | BMW 4.4 L Turbo V8 | 19 | Bruno Spengler | 1 |
| BMW Team RLL | BMW M6 GTLM | BMW 4.4 L Turbo V8 | 24 | John Edwards | All |
| BMW Team RLL | BMW M6 GTLM | BMW 4.4 L Turbo V8 | 24 | Martin Tomczyk | All |
| BMW Team RLL | BMW M6 GTLM | BMW 4.4 L Turbo V8 | 24 | Nick Catsburg | 1–2, 12 |
| BMW Team RLL | BMW M6 GTLM | BMW 4.4 L Turbo V8 | 24 | Kuno Wittmer | 1 |
| BMW Team RLL | BMW M6 GTLM | BMW 4.4 L Turbo V8 | 25 | Bill Auberlen | 2–4, 6–12 |
| BMW Team RLL | BMW M6 GTLM | BMW 4.4 L Turbo V8 | 25 | Alexander Sims | 2–4, 6–12 |
| BMW Team RLL | BMW M6 GTLM | BMW 4.4 L Turbo V8 | 25 | Kuno Wittmer | 2, 12 |
| Risi Competizione | Ferrari 488 GTE | Ferrari F154CB 3.9 L Turbo V8 | 62 | Giancarlo Fisichella | 1–4, 10–12 |
| Risi Competizione | Ferrari 488 GTE | Ferrari F154CB 3.9 L Turbo V8 | 62 | Toni Vilander | 1–4, 10–12 |
| Risi Competizione | Ferrari 488 GTE | Ferrari F154CB 3.9 L Turbo V8 | 62 | James Calado | 1–2 |
| Risi Competizione | Ferrari 488 GTE | Ferrari F154CB 3.9 L Turbo V8 | 62 | Alessandro Pier Guidi | 12 |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 66 | Joey Hand | All |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 66 | Dirk Müller | All |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 66 | Sébastien Bourdais | 1–2, 12 |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 67 | Ryan Briscoe | All |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 67 | Richard Westbrook | All |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 67 | Scott Dixon | 1–2, 12 |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 68 | Billy Johnson | 1–2 |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 68 | Stefan Mücke | 1–2 |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 68 | Olivier Pla | 1–2 |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 69 | Tony Kanaan | 1 |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 69 | Andy Priaulx | 1 |
| Ford Chip Ganassi Racing Ford Chip Ganassi Team UK | Ford GT | Ford EcoBoost 3.5 L Turbo V6 | 69 | Harry Tincknell | 1 |
| Porsche GT Team | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 911 | Patrick Pilet | All |
| Porsche GT Team | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 911 | Dirk Werner | All |
| Porsche GT Team | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 911 | Frédéric Makowiecki | 1–2 |
| Porsche GT Team | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 911 | Nick Tandy | 12 |
| Porsche GT Team | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | Laurens Vanthoor | All |
| Porsche GT Team | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | Kévin Estre | 1–3 |
| Porsche GT Team | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | Richard Lietz | 1–2 |
| Porsche GT Team | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | Wolf Henzler | 4 |
| Porsche GT Team | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | Gianmaria Bruni | 6–12 |
| Porsche GT Team | Porsche 911 RSR | Porsche 4.0 L Flat-6 | 912 | Earl Bamber | 12 |

### GT Daytona

| Team | Chassis | Engine | No. | Drivers | Rounds |
| GRT Grasser Racing Team | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 11 | Mirko Bortolotti | 1–2 |
| GRT Grasser Racing Team | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 11 | Christian Engelhart | 1–2 |
| GRT Grasser Racing Team | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 11 | Rolf Ineichen | 1–2 |
| GRT Grasser Racing Team | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 11 | Ezequiel Pérez Companc | 1 |
| GRT Grasser Racing Team | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 11 | Richard Antinucci | 2 |
| GRT Grasser Racing Team | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 61 | Michele Beretta | 1 |
| GRT Grasser Racing Team | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 61 | Christian Engelhart | 1 |
| GRT Grasser Racing Team | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 61 | Rolf Ineichen | 1 |
| GRT Grasser Racing Team | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 61 | Roberto Pampanini | 1 |
| GRT Grasser Racing Team | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 61 | Miloš Pavlović | 1 |
| 3GT Racing | Lexus RC F GT3 | Lexus 5.0 L V8 | 14 | Sage Karam | All |
| 3GT Racing | Lexus RC F GT3 | Lexus 5.0 L V8 | 14 | Scott Pruett | 1–8 |
| 3GT Racing | Lexus RC F GT3 | Lexus 5.0 L V8 | 14 | Ian James | 1–2, 12 |
| 3GT Racing | Lexus RC F GT3 | Lexus 5.0 L V8 | 14 | Gustavo Menezes | 1 |
| 3GT Racing | Lexus RC F GT3 | Lexus 5.0 L V8 | 14 | Austin Cindric | 6 |
| 3GT Racing | Lexus RC F GT3 | Lexus 5.0 L V8 | 14 | Robert Alon | 9–12 |
| 3GT Racing | Lexus RC F GT3 | Lexus 5.0 L V8 | 15 | Jack Hawksworth | All |
| 3GT Racing | Lexus RC F GT3 | Lexus 5.0 L V8 | 15 | Robert Alon | 1–8 |
| 3GT Racing | Lexus RC F GT3 | Lexus 5.0 L V8 | 15 | Austin Cindric | 1–2, 6, 12 |
| 3GT Racing | Lexus RC F GT3 | Lexus 5.0 L V8 | 15 | Dominik Farnbacher | 1 |
| 3GT Racing | Lexus RC F GT3 | Lexus 5.0 L V8 | 15 | Scott Pruett | 9–12 |
| Change Racing | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 16 | Corey Lewis | All |
| Change Racing | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 16 | Jeroen Mul | All |
| Change Racing | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 16 | Brett Sandberg | 1–2, 6, 12 |
| Change Racing | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 16 | Kaz Grala | 1 |
| DAC Motorsports | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 18 | Emmanuel Anassis | 1–2 |
| DAC Motorsports | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 18 | Brandon Gdovic | 1–2 |
| DAC Motorsports | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 18 | Anthony Massari | 1–2 |
| DAC Motorsports | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 18 | Zachary Claman DeMelo | 1 |
| Konrad Motorsport | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 21 | Marc Basseng | 1 |
| Konrad Motorsport | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 21 | Franz Konrad | 1 |
| Konrad Motorsport | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 21 | Marco Mapelli | 1 |
| Konrad Motorsport | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 21 | Luca Stolz | 1 |
| Konrad Motorsport | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 21 | Lance Willsey | 1 |
| Alex Job Racing | Audi R8 LMS | Audi 5.2 L V10 | 23 | Townsend Bell | 1–2, 6, 8, 12 |
| Alex Job Racing | Audi R8 LMS | Audi 5.2 L V10 | 23 | Bill Sweedler | 1–2, 6, 8, 12 |
| Alex Job Racing | Audi R8 LMS | Audi 5.2 L V10 | 23 | Frankie Montecalvo | 1–2, 6, 12 |
| Alex Job Racing | Audi R8 LMS | Audi 5.2 L V10 | 23 | Pierre Kaffer | 1 |
| Dream Racing Motorsport | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 27 | Paolo Ruberti | 1–2, 6 |
| Dream Racing Motorsport | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 27 | Cédric Sbirrazzuoli | 1–2, 6 |
| Dream Racing Motorsport | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 27 | Lawrence DeGeorge | 1–2 |
| Dream Racing Motorsport | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 27 | Raffaele Giammaria | 1 |
| Dream Racing Motorsport | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 27 | Luca Persiani | 1 |
| Alegra Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 28 | Daniel Morad | All |
| Alegra Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 28 | Michael Christensen | 1–3, 6, 12 |
| Alegra Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 28 | Michael de Quesada | 1–2, 6–7, 9, 12 |
| Alegra Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 28 | Carlos de Quesada | 1 |
| Alegra Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 28 | Jesse Lazare | 1 |
| Alegra Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 28 | Spencer Pumpelly | 2 |
| Alegra Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 28 | Mathieu Jaminet | 4–5 |
| Alegra Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 28 | Patrick Long | 8, 10–11 |
| Montaplast by Land-Motorsport | Audi R8 LMS | Audi 5.2 L V10 | 29 | Connor De Phillippi | 1–2, 12 |
| Montaplast by Land-Motorsport | Audi R8 LMS | Audi 5.2 L V10 | 29 | Christopher Mies | 1–2, 12 |
| Montaplast by Land-Motorsport | Audi R8 LMS | Audi 5.2 L V10 | 29 | Jules Gounon | 1–2 |
| Montaplast by Land-Motorsport | Audi R8 LMS | Audi 5.2 L V10 | 29 | Jeffrey Schmidt | 1 |
| Montaplast by Land-Motorsport | Audi R8 LMS | Audi 5.2 L V10 | 29 | Sheldon van der Linde | 12 |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 33 | Jeroen Bleekemolen | All |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 33 | Ben Keating | 1–9, 11–12 |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 33 | Mario Farnbacher | 1–2, 6, 12 |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 33 | Adam Christodoulou | 1 |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 33 | Trent Hindman | 10 |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 50 | Gunnar Jeannette | 1–8 |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 50 | Cooper MacNeil | 1–8 |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 50 | Shane van Gisbergen | 1–2, 6 |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 50 | Thomas Jäger | 1 |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 50 | Gunnar Jeannette | 9–12 |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 50 | Cooper MacNeil | 9–12 |
| Riley Motorsports - Team AMG Riley Motorsports - WeatherTech Racing | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 50 | Patrick Long | 12 |
| EBIMOTORS | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 46 | Fabio Babini | 1–2 |
| EBIMOTORS | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 46 | Emanuele Busnelli | 1–2 |
| EBIMOTORS | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 46 | Emmanuel Collard | 1–2 |
| EBIMOTORS | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 46 | François Perrodo | 1 |
| EBIMOTORS | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 46 | Michele Beretta | 2 |
| Paul Miller Racing | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 48 | Bryan Sellers | All |
| Paul Miller Racing | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 48 | Madison Snow | All |
| Paul Miller Racing | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 48 | Dion von Moltke | 1–2 |
| Paul Miller Racing | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 48 | Andrea Caldarelli | 1 |
| Paul Miller Racing | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 48 | Bryce Miller | 1 |
| Paul Miller Racing | Lamborghini Huracán GT3 | Lamborghini 5.2 L V10 | 48 | Trent Hindman | 12 |
| Spirit of Race | Ferrari 488 GT3 | Ferrari F154CB 3.9 L Turbo V8 | 51 | Peter Mann | 1 |
| Spirit of Race | Ferrari 488 GT3 | Ferrari F154CB 3.9 L Turbo V8 | 51 | Rino Mastronardi | 1 |
| Spirit of Race | Ferrari 488 GT3 | Ferrari F154CB 3.9 L Turbo V8 | 51 | Maurizio Mediani | 1 |
| Spirit of Race | Ferrari 488 GT3 | Ferrari F154CB 3.9 L Turbo V8 | 51 | Alessandro Pier Guidi | 1 |
| Spirit of Race | Ferrari 488 GT3 | Ferrari F154CB 3.9 L Turbo V8 | 51 | Davide Rigon | 1 |
| CORE Autosport | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 54 | Jon Bennett | All |
| CORE Autosport | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 54 | Colin Braun | All |
| CORE Autosport | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 54 | Niclas Jönsson | 1–2, 6, 12 |
| CORE Autosport | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 54 | Patrick Long | 1 |
| Stevenson Motorsports | Audi R8 LMS | Audi 5.2 L V10 | 57 | Lawson Aschenbach | All |
| Stevenson Motorsports | Audi R8 LMS | Audi 5.2 L V10 | 57 | Andrew Davis | All |
| Stevenson Motorsports | Audi R8 LMS | Audi 5.2 L V10 | 57 | Matt Bell | 1–2, 12 |
| Stevenson Motorsports | Audi R8 LMS | Audi 5.2 L V10 | 57 | Robin Liddell | 1 |
| Manthey Racing | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 59 | Matteo Cairoli | 1 |
| Manthey Racing | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 59 | Sven Müller | 1 |
| Manthey Racing | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 59 | Harald Proczyk | 1 |
| Manthey Racing | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 59 | Reinhold Renger | 1 |
| Manthey Racing | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 59 | Steve Smith | 1 |
| Scuderia Corsa | Ferrari 488 GT3 | Ferrari F154CB 3.9 L Turbo V8 | 63 | Alessandro Balzan | All |
| Scuderia Corsa | Ferrari 488 GT3 | Ferrari F154CB 3.9 L Turbo V8 | 63 | Christina Nielsen | All |
| Scuderia Corsa | Ferrari 488 GT3 | Ferrari F154CB 3.9 L Turbo V8 | 63 | Matteo Cressoni | 1–2, 6, 12 |
| Scuderia Corsa | Ferrari 488 GT3 | Ferrari F154CB 3.9 L Turbo V8 | 63 | Sam Bird | 1 |
| Park Place Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 73 | Patrick Lindsey | All |
| Park Place Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 73 | Jörg Bergmeister | 1–5, 7–12 |
| Park Place Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 73 | Matt McMurry | 1–2, 6, 12 |
| Park Place Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 73 | Norbert Siedler | 1 |
| Park Place Motorsports | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 73 | Jan Heylen | 2 |
| SunEnergy1 Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 75 | Tristan Vautier | All |
| SunEnergy1 Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 75 | Boris Said | 1–3, 6 |
| SunEnergy1 Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 75 | Kenny Habul | 1–2, 4–7, 9–12 |
| SunEnergy1 Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 75 | Maro Engel | 1 |
| SunEnergy1 Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 75 | Paul Morris | 1 |
| SunEnergy1 Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 75 | Dion von Moltke | 8, 12 |
| Lone Star Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 80 | Dan Knox | 4, 9–11 |
| Lone Star Racing | Mercedes-AMG GT3 | Mercedes-AMG M159 6.2 L V8 | 80 | Mike Skeen | 4, 9–11 |
| Michael Shank Racing with Curb-Agajanian | Acura NSX GT3 | Acura 3.5 L Turbo V6 | 86 | Oswaldo Negri Jr. | All |
| Michael Shank Racing with Curb-Agajanian | Acura NSX GT3 | Acura 3.5 L Turbo V6 | 86 | Jeff Segal | All |
| Michael Shank Racing with Curb-Agajanian | Acura NSX GT3 | Acura 3.5 L Turbo V6 | 86 | Tom Dyer | 1–2, 12 |
| Michael Shank Racing with Curb-Agajanian | Acura NSX GT3 | Acura 3.5 L Turbo V6 | 86 | Ryan Hunter-Reay | 1 |
| Michael Shank Racing with Curb-Agajanian | Acura NSX GT3 | Acura 3.5 L Turbo V6 | 93 | Andy Lally | All |
| Michael Shank Racing with Curb-Agajanian | Acura NSX GT3 | Acura 3.5 L Turbo V6 | 93 | Katherine Legge | All |
| Michael Shank Racing with Curb-Agajanian | Acura NSX GT3 | Acura 3.5 L Turbo V6 | 93 | Mark Wilkins | 1–2, 12 |
| Michael Shank Racing with Curb-Agajanian | Acura NSX GT3 | Acura 3.5 L Turbo V6 | 93 | Graham Rahal | 1 |
| Turner Motorsport | BMW M6 GT3 | BMW 4.4 L Turbo V8 | 96 | Jens Klingmann | All |
| Turner Motorsport | BMW M6 GT3 | BMW 4.4 L Turbo V8 | 96 | Justin Marks | 1–2, 6, 12 |
| Turner Motorsport | BMW M6 GT3 | BMW 4.4 L Turbo V8 | 96 | Jesse Krohn | 1–2, 8–12 |
| Turner Motorsport | BMW M6 GT3 | BMW 4.4 L Turbo V8 | 96 | Maxime Martin | 1 |
| Turner Motorsport | BMW M6 GT3 | BMW 4.4 L Turbo V8 | 96 | Bret Curtis | 3–5, 7 |
| Aston Martin Racing | Aston Martin V12 Vantage GT3 | Aston Martin 6.0 L V12 | 98 | Paul Dalla Lana | 1 |
| Aston Martin Racing | Aston Martin V12 Vantage GT3 | Aston Martin 6.0 L V12 | 98 | Pedro Lamy | 1 |
| Aston Martin Racing | Aston Martin V12 Vantage GT3 | Aston Martin 6.0 L V12 | 98 | Mathias Lauda | 1 |
| Aston Martin Racing | Aston Martin V12 Vantage GT3 | Aston Martin 6.0 L V12 | 98 | Marco Sørensen | 1 |
| TRG | Aston Martin V12 Vantage GT3 | Aston Martin 6.0 L V12 | 007 | Brandon Davis | 8 |
| TRG | Aston Martin V12 Vantage GT3 | Aston Martin 6.0 L V12 | 007 | James Davison | 8 |
| TRG | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 991 | Wolf Henzler | 1, 3 |
| TRG | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 991 | Jan Heylen | 1, 3 |
| TRG | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 991 | Santiago Creel | 1 |
| TRG | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 991 | Mike Hedlund | 1 |
| TRG | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 991 | Tim Pappas | 1 |
| TRG | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 991 | Parker Chase | 4 |
| TRG | Porsche 911 GT3 R | Porsche 4.0 L Flat-6 | 991 | Harry Gottsacker | 4 |