Looks like IMSA/Tudor (International Motorsports Association). Sports car racing. It's the group that runs things like the 24hrs of Daytona and 12hrs of Sebring, Laguna Seca and Watkins Glen along with other events internationally (Maybe even Le Mans?). The Tudor series is a group of endurance races within IMSA. Coincidently, Nikki Lauda's son, Matias Lauda, competes in those races. Races for Aston Martin Edit: had to confirm more of my info. I watcbed all 24hrs of Sebring and Daytona, had to check my memory.