Sauber believes its reserve driver should stay race-sharp if possible.
Drivers Nico Hülkenberg and Esteban Gutiérrez pulled back the covers on the Sauber C32 - Ferrari 2013 challenger at the team's base in Hinwil, Switzerland today.
Kevin Magnussen topped the timesheets for McLaren at the end of the first day of the F1 Young Driver Test at Silverstone. Several of the Formula One current and reserve drivers were on hand along with testing Pirelli tyres.
The youngsters will continue to have an important role at Silverstone, because the race drivers are only allowed to conduct specific tyre testing.