Toro Rosso are preparing to test their version of the F-duct ahead of the Italian Grand Prix.
Toro Rosso are one of several teams to conduct straight-line aerodynamic tests ahead of the race at Monza, where high top speed is vital. Ferrari, Force India and Lotus have all done straight-line tests since the Belgian Grand Prix.
Buemi hasn’t scored a point since the European Grand Prix and team mate Jaime Alguersuari has been out of the points since Spain. Toro Rosso are in their first year as a full constructor in F1.
Update: Buemi also posted this (slightly blurry) picture of the car