🇨🇭 Stefan Tanner

Stefan Tanner is a semi-professional driver racing in the 24H Series, a multiclass endurance championship where production-based and TCR touring cars share the track across international rounds. He drives for Stanco&Tanner Motorsport and has made eight starts in the series since 2017, split between the A2, TCE, and TCR classes.[1]

Tanner has taken two wins and three podiums across nine rounds of racing indexed here. His record spans a full decade of participation in the 24H Series, with his most recent outing in 2026 yielding a podium finish so far in what remains an incomplete season.[2]

The 24H Series grid routinely mixes semi-professional entrants with graded professionals, and Tanner has finished behind regular opponents Antti Buri, a FIA Silver-graded entry-level professional and 2018 24H Series TCR champion, and Kari-Pekka Laaksonen, a semi-professional and fellow 2018 TCR champion. He has nonetheless beaten drivers of established professional standing, including Gold-graded Gilles Magnus, a 62-time starter in GT World Challenge Europe, and Julien Apothéloz, a professional with significant endurance racing experience. Tanner races alongside established teams such as Autorama Motorsport by Wolf-Power Racing, which fields professional drivers and has recorded 46 wins across the index.