Following the season, Dillmann became the rookie driver for A1 Team Switzerland in A1 Grand Prix; he was a member of the team at the Taupo and Eastern Creek rounds in 2008.
По итогам сезона Дильманн стал новобранцем команды A1 Team Switzerland в A1 Grand Prix-он был членом команды на этапах в Таупо и Eastern Creek в 2008 году.