Both Sauber and Toro Rosso have put the first few miles on their 2018 cars during filming days on Wednesday.
Teams are allowed to complete two filming days per year, but are limited to just 100km per day and are not supplied with competition tyres. Most teams use the opportunity to shakedown their new cars, providing an opportunity to run basic system checks before official testing gets underway.
First glimpse of the #C37 on trackud83dudc4d So much to do in so little time ud83dude05 #filmingday #f1 pic.twitter.com/s96codovYP
— Sauber F1 Team (@SauberF1Team) February 21, 2018
Just one day after unveiling the new C37 to the world, Sauber arrived at the Circuit de Catalunya for the new car's first day of running.