Sauber has confirmed it plans to give its challenger for the 2016 F1 season, the C35, its first mileage at the second test in Spain.
The Swiss team, which finished eighth in the 2015 constructors standings with a best finish of fifth place, have confirmed to Crash.net
that it run last year's C34 car at the first four-day test at the Circuit de Catalunya – which kicks off on 22nd February -, albeit in the latest livery.
The move will put some pressure on Sauber ahead of the new season following the move to reduce pre-season testing from 12 days to 8 days. As a result, the Ferrari-powered C35 will only have four days of mileage under its belt when it arrives in Melbourne for the Australian Grand Prix curtain raiser.
Despite this, Sauber heads into the 2016 season with an unchanged driver line-up, with Felipe Nasr and Marcus Ericsson. It is yet to confirm whether Raffaele Marciello will be retained as its test and reserve driver.