Date   Tuesday February 7 2011 Driver   Jenson Button Location   Circuito de Jerez Track length   4.423km Weather Warm and sunny. Maximum ambient temperature 17.7°C, maximum track temperature 33.3°CLaps completed   62 Kilometres covered   274kmBest laptime   1m21.530s at 16:05Programme Jenson begun the Vodafone McLaren Mercedes team’s 2012 pre-season testing programme at Jerez this morning. The day started slowly, with Jenson and the team conducting a number of shorter runs, before completing a thorough systems check to ensure the car was running reliably.

Before lunchtime, however, the car was back on track as the team begun a number of longer runs lasting for the remainder of the day. These were useful in helping the team to begin measuring tyre-wear on Pirelli’s new-spec rubber and assessing the MP4-27’s fundamental handling characteristics over the course of a stint.

Following the day’s running, Jenson said:

“It’s been a good day: this morning, we ran through our installation and systems checks and the running was good. We’ve been gathering data on aerodynamics, downforce levels, temperatures and the feeling inside the cockpit.

“We did a 15-lap timed run this afternoon, which is a good starting point for us – and the consistency was okay. It’s been a positive day: there are no niggly areas with the car, which is nice. Overall, today was just a starting point, and was all about putting miles on the car. There are some promising signs, so I’m happy.

“It’s now important for us to get a clean day of running tomorrow, put some miles on the car and find a direction that we like. Today’s a very good basis for the next few days.”

Driver for day two   Lewis Hamilton Duration of test   Four days (February 7-10)