Magnus began karting at the age of eight and built a substantial regional record across multiple categories during his formative years, claiming numerous titles before graduating to single-seater competition.
In 2016, Magnus entered the French F4 Championship, winning at least one race and taking multiple podiums on his way to second place in the standings behind champion Yifei Ye. That autumn he participated in a rookie test at Estoril, which led to a Formula Renault NEC Championship drive with R-ace GP for 2017. The NEC campaign was closely fought: Magnus finished second in the championship, losing the title to Michaël Benyahia by just two points — a narrow defeat that mirrored his F4 result and underscored his consistency under pressure.
He also contested the Formula Renault Eurocup during this period, extending his exposure to the principal single-seater pathway in European motorsport.
Magnus moved into TCR competition via the TCR Europe Touring Car Series, a natural stepping stone given the category's growth and its direct link to the WTCR. His performances there attracted the attention of Audi Sport, and he was taken on as a factory driver, marking a significant endorsement from one of touring car racing's most prominent manufacturer programmes.
At the 2019 FIA Motorsport Games, Magnus represented Belgium in the Touring Car Cup discipline and claimed the silver medal, underlining his credentials on the international stage.
Magnus competed in the WTCR across three seasons from 2020 to 2022. As a young driver in a championship dominated by experienced front-wheel-drive specialists and backed by well-established manufacturer teams, he gained extensive mileage at circuits including the Nürburgring, Vila Real, Aragón, and Macau — a diverse calendar that demanded rapid adaptation and broad technical understanding. His seasons with Comtoyou Racing and related Audi-supported entries provided a platform for development, and his time in the series built the racecraft and car-control foundations he would later carry into GT competition.
After stepping away from WTCR at the end of 2022, Magnus transitioned to GT racing, competing in the GT World Challenge Europe in both its Sprint Cup and Endurance Cup formats. He also raced in the Asian Le Mans Series and the Deutsche Tourenwagen Masters, demonstrating the kind of multi-series versatility that characterises drivers building careers at the top of endurance and sprint GT competition.
The high point of this phase came in 2024, when Magnus won the Dubai 24 Hour race — one of the longest and most competitive events on the international GT calendar. Victory at Dubai confirmed his ability to perform over an extended race distance and in demanding overnight conditions, cementing his status as a genuine threat in endurance competition.
Gilles Magnus represents a generation of Belgian drivers who arrived via the TCR pathway and found in GT racing a natural long-term home. His near-misses in single-seaters — losing by two points in both French F4 and Formula Renault NEC — gave way to greater success once he moved to tin-top machinery. The 2024 Dubai 24 Hour triumph and his consistent presence in the GT World Challenge Europe Sprint Cup confirm that the trajectory, while unorthodox, has ultimately pointed upward.