| 01 | Cadillac V-Series.R | Cadillac Racing | yellow/black (+red) | CADILLAC | Michelin | Mobil 1 | closed | mid |
| 04 | Oreca 07 Gibson | Crowdstrike Racing by APR | red/grey | CROWDSTRIKE/Accel | Michelin | | closed | mid |
| 1 | BMW M4 GT3 | Paul Miller Racing | white/black/red | TOTAL/UIS/Paul Miller Auto Group/Quartz | Michelin | | closed | front |
| 3 | Chevrolet Corvette C8.R GTD | Corvette Racing | yellow/grey | Mobil 1/Sirius XM | Michelin | | closed | mid |
| 4 | Ligier JS P320 Nissan | Ave Motorsports | red/grey(+white) | Motul | Michelin | | closed | mid |
| 5 | Porsche 963 | JDC Miller MotorSports | yellow (+black) | JDC/PORSCHE/TROFI PACK/S3s/wiha | Michelin | | closed | mid |
| 6 | Porsche 963 | Porsche Penske Motorsports | red/white (+black) | PORSCHE 963/PENSKE/Ansys/TAG HEUER/HELLER | Michelin | | closed | mid |
| 7 | Porsche 963 | Porsche Penske Motorsports | red/white/black | PORSCHE 963/PENSKE/Ansys/TAG HEUER/HELLER | Michelin | Mobil 1 | closed | mid |
| 8 | Oreca 07 Gibson | Tower Motorsports | orange/black/white | Tower Events | Michelin | | closed | mid |
| 9 | Porsche 992 GT3 R | Pfaff Motorsports | red/black | Driveway/Motul/Motomaster/Porsche Centre Vaughan | Michelin | | closed | rear |
| 10 | Acura ARX-06 | Konica Minolta Acura ARX-06 | blue/black | Konica Minolta | Michelin | | closed | mid |
| 11 | Oreca 07 Gibson | TDS Racing | yellow/red/black | Fear the TAF | Michelin | | closed | mid |
| 12 | Lexus RC F GT3 | Vasser Sullivan | black/green | Sealmaster/Mark Levinson | Michelin | | closed | front |
| 13 | Duqueine D08 Nissan | AWA | yellow/black | Orlando Corp./OMP/Racing Spirit/Motul/Sonic Tools/Urbinco/Westrock Diamonds | Michelin | | closed | mid |
| 14 | Lexus RC F GT3 | Vasser Sullivan | black/green | Sealmaster/Mark Levinson | Michelin | | closed | front |
| 17 | Duqueine D08 Nissan | AWA | green/black | Agritainer/OMP/Racing Spirit/Motul/Sonic Tools | Michelin | | closed | mid |
| 18 | Oreca 07 Gibson | Era Motorsport | blue/yellow/black | Motul/Sparco/Control IO | Michelin | | closed | mid |
| 20 | Oreca 07 Gibson | High Class Racing | white/red/black | Polar Seafood/Mascot Workwear/HRX | Michelin | | closed | mid |
| 23 | Aston Martin Vantage AMR GT3 | Heart of Racing Team | blue/yellow | The Heart of Racing | Michelin | | closed | front |
| 24 | BMW M Hybrid V8 | BMW M Team RLL | white/blue/red | BMW of North America/IQOO/Global Medical Response | Michelin | | closed | mid |
| 25 | BMW M Hybrid V8 | BMW M Team RLL | white/blue/red | BMW of North America/IQOO/Global Medical Response | Michelin | | closed | mid |
| 27 | Aston Martin Vantage AMR GT3 | Heart of Racing Team | blue/yellow | The Heart of Racing | Michelin | | closed | front |
| 29 | Ligier JS P320 Nissan | Jr III Racing | white/blue (+red) | wing/S2 Cyber | Michelin | | closed | mid |
| 30 | Ligier JS P320 Nissan | Jr III Racing | yellow/grey/red | AirBnB/S2 Cyber | Michelin | | closed | mid |
| 31 | Cadillac V-Series.R | Whelen Engineering Cadillac Racing | red/black (+white/yellow) | WHELEN/CADILLAC | Michelin | Mobil 1 | closed | mid |
| 32 | Mercedes-AMG GT3 | Team Korthoff Motorsports | silver/black (+blue) | | Michelin | | closed | front |
| 33 | Ligier JS P320 Nissan | Sean Creech Motorsport | white/blue/red | Focal One/IRacing | Michelin | | closed | mid |
| 35 | Oreca 07 Gibson | TDS Racing | yellow/red/black | Carlac Minerals | Michelin | | closed | mid |
| 52 | Oreca 07 Gibson | PR1 Mathiasen Motorsports | purple/pink/orange | Wynns/Max Connect/rainX | Michelin | | closed | mid |
| 57 | Mercedes-AMG GT3 | Winward Racing | black/blue | Techemet/First Horizon | Michelin | | closed | front |
| 59 | Porsche 963 | Proton Competition | white (+red/blue) | WeatherTech/F.A.T. | Michelin | Motul | closed | mid |
| 60 | Acura ARX-06 | Meyer Shank Racing w/ Curb Agajanian | white/pink/black (+blue) | Autonation/Sirius XM/Curb Records | Michelin | | closed | mid |
| 66 | Acura NSX GT3 | Gradient Racing | white/green | JG Wentworth 877CASHNOW.com/Acura/HPD | Michelin | | closed | mid |
| 70 | McLaren 720S GT3 Evo | Inception Racing | black/red | Pedal Mafia/AVORAK | Michelin | | closed | mid |
| 74 | Ligier JS P320 Nissan | Riley | blue/orange (+white) | 74 Ranch Resort | Michelin | | closed | mid |
| 77 | Porsche 992 GT3 R | Wright Motorsports | yellow (+orange) | Volt Lighting/Matter | Michelin | | closed | rear |
| 78 | Lamborghini Huracán GT3 Evo2 | Forte Racing Powered by USRT | | | Michelin | | closed | mid |
| 78T | Lamborghini Huracán GT3 Evo2 | Forte Racing Powered by USRT | black/green | ARROW/GoBolt/O'Gara/Change Racing/Luvv | Michelin | | closed | mid |
| 79 | Mercedes-AMG GT3 | WeatherTech Racing | white (+red/blue) | WeatherTech | Michelin | | closed | front |
| 80 | Porsche 992 GT3 R | AO Racing | green | | Michelin | | closed | rear |
| 85 | Duqueine D08 Nissan | JDC Miller MotorSports | yellow (+blue) | CSCI | Michelin | | closed | mid |
| 91 | Porsche 992 GT3 R | Kellymoss with Riley | grey (+yellow) | Pagid Racing | Michelin | | closed | rear |
| 92 | Porsche 992 GT3 R | Kellymoss with Riley | pink/white/purple (+orange) | Thu Brule' Skincare | Michelin | | closed | rear |
| 93 | Acura NSX GT3 Evo22 | Racers Edge Motorsports with WTR | red/grey | Harrison Contracting Company/HPD/PPG Paints/HPD Academy/OMP | Michelin | | closed | mid |
| 96 | BMW M4 GT3 | Turner Motorsport | yellow/blue | Turner/Pagid/H&R | Michelin | | closed | front |
| 97 | BMW M4 GT3 | Turner Motorsport | blue/grey | McIntosh | Michelin | | closed | front |