Red Bull Racing and Sauber are the latest teams to confirm their driver line-ups for the opening 2016 pre-season test.
Winter running begins with a four-day test at the Circuit de Barcelona-Catalunya from the 22-25 February.
Red Bull will officially unveil the RB12 on the morning of the first day, having already launched its new livery for the 2016 season.
Daniel Ricciardo will be at the wheel of the team’s new car on Monday and Tuesday, before handing over to his team-mate Daniil Kvyat, who will conclude the test for Red Bull.
Sauber’s new car is set to be unveiled on the 1 March, ahead of the first day of the second test. It will run an updated C34 from 2015 at the first event.
“Fire up, fire up” – our driver allocation for #Test1: Marcus will drive the C34 on day 1 and 2, Felipe on day 3 and 4 @Circuitcat_es #F1
— Sauber F1 Team (@SauberF1Team) February 19, 2016
Marcus Ericsson and Felipe Nasr remain at the Swiss outfit for a second season. The former will drive the C34 on days one and two. Nasr will then take over for the final two sessions.