Formula One's new era got underway with four days of testing at Jerez this week with ten teams trying out their new cars and the 2014 tyres for the first time.

With such a revolutionary series of technical changes, running was considerably limited compared to last year, and very little tyre work was carried out. Nonetheless, the teams were able to have their first taste of Pirelli's 2014 tyre range, which features new compounds and constructions. The teams could also try out the new Cinturato Green intermediate and Cinturato Blue wet on the second day, which was designated as a wet-weather test day. More rain then fell on Friday, providing another opportunity.

Pirelli additionally brought a bespoke 'winter' version of the hard tyre to Jerez, designed to enable teams to maximise running even in low ambient temperatures (which dipped down to six degrees centigrade).

Paul Hembery: "The emphasis was not on tyres during this test: instead the teams were simply trying to get an understanding of this radical new set of regulations and put the first kilometres onto their cars. With so much to understand about the new power units and aerodynamic rules, the teams aimed simply to increase their knowledge about the cars. The upcoming tests in Bahrain should allow them to focus on tyres a little more, having had two weeks to develop their cars and remedy any issues that have been identified at Jerez.

"We too are completely open, flexible and ready to adapt our tyres should the tests in Bahrain, where more meaningful running will take place, identify any need to do so. This year's test regulations stipulate a day of wet weather running, which we were able to carry out on Wednesday morning. With more rain falling on Friday, the teams had the opportunity to try out the wet-weather compounds before using them in race conditions."

Testing Facts

The opening day of running was extremely quiet, with just 93 laps completed from eight drivers and cars on Tuesday. The on-track action then ramped up, with teams attempting longer runs. The final day was the busiest day of the test, with 688 laps completed.

Teams had a maximum of 25 sets of tyres each at their disposal for Jerez. In total, 18 of those sets were selected by Pirelli (six 'winter', four hard, two medium, and three each of intermediate and wet). The teams were then allowed to choose in advance seven more sets of tyres to test per car, up to their total maximum of 25. In total, 135 sets of tyres are allowed per team for testing purposes throughout 2014.

Owing to the huge number of new variables at work, and the very wide spread of lap times seen throughout the four days, there was no real significance in the time difference between the compounds that were tested at Jerez. More meaningful tyre data should be seen in Bahrain, with all the teams expected to be present.

A total of 22 drivers took part in the Jerez test, completing 1,470 laps and 6,509 kilometres.

The equivalent Jerez test last year took in 3,531 laps and 15,634 kilometres.

McLaren driver Kevin Magnussen set the fastest time of the Jerez test, with a time of 1m23.276s on Thursday. By way of comparison, the fastest time at the Jerez test last year was 1m17.879s, set by Felipe Massa in a Ferrari.

The highest number of total laps completed at this year's Jerez test by any one driver was Nico Rosberg, who racked up 188 laps with Mercedes.

Testing Numbers

Total number of sets brought to Jerez: 250 sets which equals 1,000 tyres

of which supersoft tyres: 2 sets

of which soft tyres: 9 sets
of which medium tyres: 52 sets
of which hard tyres: 52 sets
of which 'winter' tyres: 69 sets
of which intermediate tyres: 36 sets
of which wet tyres: 30 sets

Total amount of sets used: 99

of which supersoft tyres: 1 sets
of which soft tyres: 2 sets
of which medium tyres: 23 sets
of which hard tyres: 11 sets
of which 'winter' tyres: 32 sets
of which intermediate tyres: 20 sets
of which wet tyres: 10 sets

Longest runs:

10 laps on the supersoft compound
9 laps of the soft compound
17 laps on the medium compound
24 laps on the hard compound
23 laps on the 'winter' compound
26 laps on the intermediate compound
13 laps on the wet compound

Highest / lowest ambient temperature over four days: 17 °C / 5 °C

Highest / lowest track temperature over four days: 23 °C / 6 °C