Sébastien Buemi marked his 100th race in the FIA World Endurance Championship with victory. At the 6 Hours of Barcelona, he won alongside Brendon Hartley and Ryō Hirakawa as Toyota Racing finished first and second, clinching the manufacturers’ world title with one round still to go. The Catalan circuit was hosting its first ever WEC race, and the team had never run the TR010 HYBRID there. After two days spent…