| 01 | Cadillac V-Series.R | Cadillac Racing | yellow/black (+red) | CADILLAC | Michelin | Mobil 1 | closed | mid |
| 5 | Porsche 963 | Proton Competition Mustang Sampling | black (+gold) | Mustang Sampling/F.A.T. | Michelin | Motul | closed | mid |
| 6 | Porsche 963 | Porsche Penske Motorsport | red/white (+black) | PORSCHE 963/PENSKE/Ansys/TAG HEUER/HELLER | Michelin | | closed | mid |
| 7 | Porsche 963 | Porsche Penske Motorsport | red/white/black | PORSCHE 963/PENSKE/Ansys/TAG HEUER/HELLER | Michelin | | closed | mid |
| 10 | Acura ARX-06 | Wayne Taylor Racing with Andretti | blue/black | Acura/HRC/Konica Minolta | Michelin | | closed | mid |
| 12 | Lexus RC F GT3 | Vasser Sullivan | black/yellow | Sealmaster/Mark Levinson/Molex | Michelin | | closed | front |
| 13 | Chevrolet Corvette C8 Z06 GT3.R | AWA | black/yellow | Orlandocorp.com/OMP | Michelin | | closed | mid |
| 24 | BMW M Hybrid V8 | BMW M Team RLL | white/blue/red | BMW of North America/Puma | Michelin | | closed | mid |
| 25 | BMW M Hybrid V8 | BMW M Team RLL | white/blue/red | BMW of North America/Puma | Michelin | | closed | mid |
| 27 | Aston Martin Vantage GT3 Evo | Heart of Racing Team | blue (+yellow) | THE HEART OF RACING | Michelin | | closed | front |
| 28 | Aston Martin Vantage AMR GT3 Evo | Flying Lizard Motorsports | black/orange | 511/CODI | Michelin | | closed | front |
| 31 | Cadillac V-Series.R | Whelen Cadillac Racing | red/black (+white/yellow) | WHELEN/CADILLAC | Michelin | Mobil 1 | closed | mid |
| 32 | Mercedes-AMG GT3 | Korthoff/Preston Motorsports | grey/blue | | Michelin | | closed | front |
| 34 | Ferrari 296 GT3 | Conquest Racing | white/red (+black) | Corsa Horizon | Michelin | | closed | mid |
| 40 | Acura ARX-06 | Wayne Taylor Racing with Andretti | red/black | Acura/HRC/Gainbridge/DEX Imaging | Michelin | | closed | mid |
| 43 | Porsche 992 GT3 R | Andretti Motorsports | grey/white (+green) | GALLANT/MI/Window World | Michelin | | closed | rear |
| 45 | Lamborghini Huracán GT3 Evo2 | Wayne Taylor Racing with Andretti | black/red | DEX Imaging/Gainbridge/Lamborghini Palm Beach | 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 | Techemet/First Horizon | 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 |
| 78 | Lamborghini Huracán GT3 Evo2 | Forte Racing | green/black (+purple) | GoBolt/O'GARA/Change Racing/EVTEC | Michelin | | closed | mid |
| 85 | Porsche 963 | JDC-Miller MotorSports | yellow (+black) | JDC/PORSCHE/TROFI PACK/S3s/wiha | Michelin | Motul | closed | mid |
| 86 | Porsche 992 GT3 R | MDK Motorsports | red/yellow/black | Derun Environment/Ease | Michelin | | closed | rear |
| 89 | Lexus RC F GT3 | Vasser Sullivan | black/yellow | Sealmaster/Mark Levinson/Molex | Michelin | | closed | front |
| 96 | BMW M4 GT3 | Turner Motorsport | white/red/blue | Liqui Moly/TurnerBelle Haven/H&R/Procore | Michelin | | closed | front |
| 120 | Porsche 992 GT3 R | Wright Motorsports | green/yellow | Griiip/APS | Michelin | | closed | rear |