After the first race of the Nürburgring Langstrecken-Serie (NLS) – and thus the season opener of the Porsche Endurance Trophy Nürburgring (PETN) – was cancelled due to bad weather, the PETN got off to a belated start in its fifth season. 

Following a 2025 season crowned with three championship titles, Manthey will compete in the DTM again in 2026. 

Manthey concludes the 2025/26 Asian Le Mans Series (ALMS) season at the Yas Marina Circuit with the two Porsche 911 GT3 R cars finishing third and eighth in the GT class championship standings. 

Manthey concluded its debut in the 2026 IMSA season at the 24 Hours of Daytona with fifth place (#911, GTD PRO) and twelfth place (#912, GTD). 

For Manthey, 2026 marks the company's 30th anniversary.