Sergio Perez had ‘another positive’ day as he brought this pre-season test session in Barcelona to a close for his Sauber team.
The Mexican completed 74 laps of the Circuit de Catalunya with his main focus working on the set-up of the car.
“It was another positive day,” Perez said. “I learnt a lot, in particular about the tyres. They kept changing, but now we have the final spec for the beginning of the season, so it was good I was able to run them today to learn how to maximise their potential. We did a lot of work over the two days, so I'm quite happy.”
Technical director James Key explained how the team went about their business on the fourth and final day of this test session. “Today we spent most of the time working on the set-up of the car, and we tried some new test items,” he said. “We have to look at the data, but certainly we found some new directions.
“We also found some useful directions with the different compounds of tyres between the start in the morning, which was cold, and the afternoon when it was quite warm. The temperatures, the set up and the tyre compound are all very closely linked. There's a lot of factors to consider, and we were able to learn more about all of them.
“Now we head off to the next test where we will introduce onto the car the first part of the update for the start of the season.”
The next test, originally scheduled to be in Bahrain next week, will now be on 8-11 March, back in Barcelona.