Toro Rosso took advantage of its second filming day to take to the track at Imola ahead of the Formula 1 summer shutdown to prepare for the driver aids clampdown.
Dutch driver Max Verstappen was at the wheel of the Renault-powered STR10 at the Italian track, using the day to prepare for the clampdown on driver aids that will be introduced from the Belgian Grand Prix.
Verstappen spent most of the day practicing starts in the pitlane.
Earlier this month, the F1 Strategy Group approved plans for drivers to be forced to conduct manual starts from the Spa race next month.
Meanwhile, Toro Rosso has discovered the cause of Carlos Sainz's retirement from the Hungarian Grand Prix.
The Spanish driver, who was forced into his third non-finish in a row, suffered a drop of pressure in the turbo system due to a broken pipe-ring clamp.