Vilander has competed in the FIA World Endurance Championship since the series was launched in 2012, having made sporadic appearances in the interim Intercontinental Le Mans Cup series which preceded it. In 2012 he shared a Ferrari 458 Italia with Bruni and Fisichella in AF Corse's lead entry for three of the championship's eight rounds, winning at Le Mans and in Bahrain, assisting the team to win the LMGTE Pro Trophy. For the 2013 season, he was switched to the team's second entry full-time, with Kamui Kobayashi and Olivier Beretta. For the final race in Bahrain, he was swapped with Fisichella in the lead entry due to the latter's disappointing performances, and duly won the class with Bruni to narrowly retain AF Corse's class championship over the works Aston Martin Racing team. With Kobayashi returning to Formula One, Vilander remains with the lead AF Corse team in 2014 with Bruni, and has won the races at Spa-Francorchamps and Le Mans (the latter also with Fisichella) to lead the GTE manufacturers' championship and the newly introduced GTE drivers' championship after three races.