The 2014 WEC 6 Hours of Spa-Francorchamps had a winning team that included the Swiss driver who previously competed for which team in Formula One?
2014 6 Hours of Spa-Francorchamps:  Toyota's Anthony Davidson, Sébastien Buemi, and Nicolas Lapierre led the field to the checkered flag for their second consecutive victory of the season, ahead of Audi and the sister Toyota. Sébastien Buemi: Sébastien Olivier Buemi (born 31 October 1988) is a Swiss professional racing driver, who formerly competed for Scuderia Toro Rosso in Formula One.
Scuderia Toro Rosso