Jenson Button finishes day on top; Track soaked at start of day for wet tyre testing; Mercedes engines rack up miles; Three Renault teams, including Red Bull, complete just 19 laps in total
Friday 31 January 2014 10:25, UK
World Champions Red Bull and Sebastian Vettel endured another troubled day as they suffered the rare indignity of propping up the timesheets on Day Two at Jerez.
Meanwhile, Esteban Gutierrez shrugged off a trip into the gravel as he racked up 53 laps - the most of any Ferrari-powered driver - to gain valuable mileage for Sauber and their C33. "Today we were able to do a lot of laps, which is very positive," the Mexican said. "Considering the circumstances, it is very important to put in this mileage. We found some issues in the systems, which is something to work on and part of the process. Obviously at this stage I was not able to push. Before we can take it to the limit our priority is reliability. "We had some issues with the braking system, where it was better to go easy in the braking zones, figure out how the system reacts, get mileage and sort it out." Testing continues on Thursday when Lewis Hamilton returns to action while rookie Kevin Magnussen will debut for McLaren in the afternoon session. Jerez test, Day Two timesheet:
