| 04 | Oreca 07 Gibson | Crowdstrike Racing by APR | orange/grey | CROWDSTRIKE | Michelin | closed | mid |
| 1 | BMW M4 GT3 | Paul Miller Racing | grey/red/white/blue | IHeart RADIO/UIS/Paul Miller Auto Group | Michelin | closed | front |
| 2 | Oreca 07 Gibson | United Autosports USA | purple/pink/orange | wynn’s/MAX CONNECT/RainX/CLIENT COMMAND | Michelin | closed | mid |
| 3 | Chevrolet Corvette Z06 GT3.R | Corvette Racing by Pratt Miller Motorsports | yellow/black | OSHKOSH/Mobil 1/Sirius XM | Michelin | closed | mid |
| 4 | Chevrolet Corvette Z06 GT3.R | Corvette Racing by Pratt Miller Motorsports | yellow/black | OSHKOSH/Mobil 1/Sirius XM | Michelin | closed | mid |
| 8 | Oreca 07 Gibson | Tower Motorsports | white/orange (+black) | TOWER EVENTS/MOTUL | Michelin | closed | mid |
| 9 | McLaren 720S GT3 Evo | Pfaff Motorsports | red/black (+grey) | driveway.com/MOTUL/MOTOMASTER/McLaren Toronto | Michelin | closed | mid |
| 11 | Oreca 07 Gibson | TDS Racing | yellow/black (+white) | FEAR THE TAF/HBI | Michelin | closed | mid |
| 12 | Lexus RC F GT3 | VasserSullivan | black/yellow | SealMaster/Mark Levinson/molex | Michelin | closed | front |
| 13 | Chevrolet Corvette Z06 GT3.R | AWA | black/yellow | ORLANDOCORP.COM/OMP | Michelin | closed | mid |
| 14 | Lexus RC F GT3 | VasserSullivan | black/yellow | SealMaster/Mark Levinson/molex | Michelin | closed | front |
| 18 | Oreca 07 Gibson | Era Motorsport | blue/purple/white | MOTUL/SPARCO/ModuLine | Michelin | closed | mid |
| 20 | Oreca 07 Gibson | MDK by High Class Racing | red/white/black | MOTUL | Michelin | closed | mid |
| 22 | Oreca 07 Gibson | United Autosports USA | blue/red/white | CSCI/Wing/Terra Energy/Baccharis | Michelin | closed | mid |
| 23 | Aston Martin Vantage GT3 Evo | Heart of Racing Team | blue (+yellow) | THE HEART OF RACING | Michelin | closed | front |
| 27 | Aston Martin Vantage GT3 Evo | Heart of Racing Team | blue (+yellow) | THE HEART OF RACING | Michelin | closed | front |
| 32 | Mercedes-AMG GT3 | Korthoff/Preston Motorsports | grey/blue | | Michelin | closed | front |
| 33 | Ligier JS P217 Gibson | Sean Creech Motorsport | white/red/blue | Focal One | Michelin | closed | mid |
| 34 | Ferrari 296 GT3 | Conquest Racing | white/red (+black) | CORSA HORIZON | Michelin | closed | mid |
| 45 | Lamborghini Huracan GT3 EVO2 | Wayne Taylor Racing with Andretti | black/red | DEX imaging/GAINBRIDGE | Michelin | closed | mid |
| 52 | Oreca 07 Gibson | Inter Europol by PR1 Mathiasen Motorsports | yellow (+green/white) | INTER Europol/de BOULLE/Lit National | Michelin | closed | mid |
| 55 | Ford Mustang GT3 | Proton Competition | blue/white | 1st Phorm/FORD PERFORMANCE | Michelin | closed | front |
| 57 | Mercedes-AMG GT3 | Winward Racing | black/blue/pink | FIRST HORIZON/TECHEMET | Michelin | closed | front |
| 64 | Ford Mustang GT3 | Ford Multimatic Motorsports | blue/white/red | FORD PERFORMANCE/Multimatic | Michelin | closed | front |
| 65 | Ford Mustang GT3 | Ford Multimatic Motorsports | blue/white/red | FORD PERFORMANCE/Multimatic | Michelin | closed | front |
| 66 | Acura NSX GT3 | Gradient Racing | white/green | JG WENTWORTH 877CASHNOW.com/ACURA/HRC | Michelin | closed | mid |
| 70 | McLaren 720S GT3 Evo | Inception Racing | red/black | Pedal Mafia/AVORAK | Michelin | closed | mid |
| 74 | Oreca 07 Gibson | Riley | blue/orange | 74 RANCH RESORT | Michelin | closed | mid |
| 77 | Porsche 992 GT3 R | AO Racing | green (+gold) | Multimatic | Michelin | closed | rear |
| 78 | Lamborghini Huracan GT3 EVO2 | Forte Racing | green/black (+purple) | GoBolt/O'GARA/Change Racing/EVTEC | Michelin | closed | mid |
| 86 | Porsche 992 GT3 R | MDK Motorsports | red/yellow/black | DERUN ENVIRONMENT/EASE | Michelin | closed | rear |
| 88 | Oreca 07 Gibson | Richard Mille AF Corse | red/black (+blue/white) | LUMAIKE/RICHARD MILLE | Michelin | closed | mid |
| 96 | BMW M4 GT3 | Turner Motorsport | yellow/blue | TURNER/LIQUI MOLY/H&R/Belle Haven/PROCORE | Michelin | closed | front |
| 99 | Oreca 07 Gibson | AO Racing | purple/orange | Multimatic | Michelin | closed | mid |