Sauber: It was a productive day

Sauber report from day one of the first Formula 1 preseason test at Circuit de Barcelona-Catalunya, in Spain.

Marcus Ericsson: “It was a productive day. My last time in the car was a few month ago, so it was great to finally be back in it again. Even though it was the C34, we were focusing a lot on trying different things that we did not have the time for last year. We tested several set-ups on the car, and we will use some information from this for early work on the C35. It was an extensive programme from which we obtained interesting data to look into.”