70 GT3 cars, including a record number of 15 Mercedes-AMG GT3s, took part in the 75th edition of the CrowdStrike 24 Hours of Spa. Following mixed conditions in qualifying, last year's winners from AKKODIS ASP Team #88 showed an impressive comeback drive from 23rd on the grid. With a flawless performance and strategically clever decisions, the team and drivers Timur Boguslavskiy, Jules Gounon and Raffaele Marciello secured second place overall. SunEnergy1 Racing had to contend with difficult conditions starting from pit lane with their #75 entry. Adam Osieka stepped in for Kenny Habul at short notice and, together with Nick Catsburg, Martin Konrad and Chaz Mostert, pulled off a remarkable drive through the pack, which came to a successful conclusion with a class win in the PRO-AM category.

For Mercedes-AMG Motorsport, the 73^rd running of the classic was a special occasion: 50 years earlier, Hans Heyer and Clemens Schickentanz had finished a sensational 2^nd overall with the Mercedes 300 SEL 6.8 AMG in the 1971 24-hour race and also secured victory in their class. That laid the foundation for the AMG legend. Ever since, the race at the Circuit de Spa-Francorchamps has had its fixed place in Mercedes-AMG’s motorsport history and is an important consistent element in the customer sports programme. With the #88 car, Raffaele Marciello (ITA) posted the fastest lap time in the Super Pole session, so that a Mercedes-AMG GT3 started the race from pole position like in the two years before already. In the race itself, both his team and the Mercedes-AMG Team HRT with the #4 car lacked the necessary bit of racing luck. Following technical issues, both cars retired early. The best-placed Mercedes-AMG GT3 in the 2021 TotalEnergies 24 Hours of Spa was the #89 AKKA ASP Team entry with drivers Lucas Auer (AUT), Timur Boguslavskiy (RUS) and Felipe Fraga (BRA) in tenth place overall. In the Silver Cup classification, Madpanda Motorsport and Toksport WRT made it a 1-2 for Mercedes-AMG Motorsport.

In the 65^th running of the Total 24 Hours of Spa in the year 2013, Mercedes-AMG achieved a historic feat: with the 100^th race win of an SLS AMG GT3 since the start of the Customer Racing Programme in 2010, the performance and sports car brand from Affalterbach was crowned as the winner at Spa-Francorchamps for the first time. After victories in the GT races at Dubai and Bathurst as well as the win at the Nürburgring, the success in the Belgian Ardennes marked the fourth title in a GT3 endurance racing classic within just one season. Maximilian Buhk, Maximilian Götz and Bernd Schneider (all GER) for HTP Motorsport cemented the so-called ‘Grand Slam’ in a thrilling race. With a time of 2m 21.861s, Schneider also drove the fastest race lap.