Kevin Magnussen and McLaren were fastest on the second day in Bahrain today as the teams gradually began to pick up the pace.
However, they are still far from the sort of lap times they are likely to achieve in full qualifying form come April.
Kevin Magnussen made a great start to his official F1 career by topping the times for McLaren in Jerez
Once again it was a day of mixed fortunes for the teams, with Red Bull enduring another disaster while others successfully logged a lot of laps. Daniel Ricciardo completed only three laps in the RB10, without actually recording a time, before his team gave up for the day.
Nico Rosberg gave the new Mercedes W05 its first shakedown laps at Silverstone on Friday, prior to the car’s official launch at Jerez on Tuesday morning.
“The new F1 W05, powered by the PU106A Hybrid Power Unit, opened a new era of Formula One at 14:21 this afternoon when it left the garage for the first time in cold but dry conditions at Silverstone,” the team said in a statement. “Driven by Nico Rosberg, the car completed a total of 40 km before dusk at 16:30.”