Team Mach GT300 Toyota 86. It's exactly what it sounds like - a real life racecar with the Mach Go Go Go/Speed Racer livery. Not the first time for this team either, they've been running cars with these liveries for over 10 years now, actually starting with a Vemac.
Semi related it's also not the only racecar to actually sport the livery irl either! Back in 2008, a NASCAR Charger sported it to promote the live action movie, and in 2021 Magnus Racing had an Acura NSX in IMSA's endurance rounds (pic from the Daytona 24), though that one wasn't an official sponsor. Unfortunately '21 was the only year they ran that livery, they switched to Aston Martin with a different livery the next year.