Red Bull having a mare, wooo hooo
"Red Bull's pre-season struggles continued as the world champions endured a difficult third day of testing in Jerez.
The car broke down on its first lap in Daniel Ricciardo's hands after Sebastian Vettel managed only 11 laps over the first two days.
Ricciardo managed only two more laps before Red Bull called a halt to proceedings to try to fix the problem.
McLaren's Kevin Magnussen set the fastest time of the day.
Magnussen, who is making his F1 debut this season, was 0.424secs quicker than Williams' Felipe Massa, with Mercedes' Lewis Hamilton a further 0.252secs behind.
The second McLaren of Jenson Button made it four Mercedes-powered cars in the top four, with Ferrari's Fernando Alonso fifth, 2.219secs off Magnussen's pace.
But the times will be virtually meaningless, as the teams are only just beginning to learn about the most complex cars they have ever built."