Photos from all four days of Formula 1's third winter test in Jerez

Campos edge closer to making the 2010 grid after a buyout which sees Colin Kolles come in as team principal.

Mark Webber was not giving a large amount away after posting the quickest time on a rare dry day of testing at Jerez on Friday. The Australian topped the timesheets for Red Bull courtesy of a quickest lap of 1:19.299, beating second placed Fernando Alonso's Ferrari by over eight tenths of a second.

Mark Webber topped the timesheets on the third day of testing at Jerez de la Frontera as the weather finally took a turn for the better.

World Champion Jenson Button believes that Ferrari is in best shape to grab most points from the start of the season, judging by performances in Jerez testing this week. The Englishman also explained that he has been surveying his rivals' cars when following closely in testing.

The Campos team has confirmed that shareholder José Ramon Carabante has purchased the Madrid-based outfit from founder Adrián Campos, with ex Midland and Spyker boss Colin Kolles moving in as Team Principal.

Mark Webber goes fastest for Red Bull as the rain finally clears at the third winter test in Jerez.

Heikki Kovalainen has admitted that Lotus' first Formula 1 car in sixteen years carries a fundamental downforce problem, as he completed his Jerez test slowest on the timesheets and 3.2 seconds down on leader Mark Webber's Red Bull on Friday.   

Michael Schumacher was both optimistic and realistic in Spain on Friday as he finished his running for Jerez testing this week. Having begun Mercedes' programme on Thursday, the German hands the MGP W01 back over to team-mate Nico Rosberg as the 4-day test comes to a close on Saturday.

Although problems may have grounded the Lotus T127 for some time at Jerez on Friday, Chief Technical Officer Mike Gascoyne was pleased once again with the progress being made by the Norfolk-based team as Heikki Kovalainen completed his programme for the week.

Robert Kubica was pleased with the performance of the Renault R30 as he returned to the cockpit on Friday for the first time this week. The Pole, who picked up where Russian team-mate Vitaly Petrov had left off, registered a best lap of 1:21.916 and a lap total of exactly 100.

Mark Webber has kept up the trend by ensuring that another different driver has set the fastest time as testing continued at Jerez on Friday. Fortunately for the teams, it was at a sunny Jerez on this occasion as the track surface dried in the day following a huge thunderstorm overnight.

Time from Jerez following the third day of pre-season testing at the Spanish track.

It's understood that, following the collapse of a sponsorship deal with the Tourism Institute of Portugal, former British F3 Champion Alvaro Parente has lost his role as test driver with Virgin Racing.

The Stefan Grand Prix team has fired up a Formula 1 car for the first time as it continues to aim for a place on this year's grid. The Belgrade-based outfit, which has already shipped containers of equipment to Bahrain, has purchased several Toyota F1 components.

Today's mid session times from Jerez, the penultimate day of testing at the Spanish track.

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Thankfully the sun is finally shining in Jerez, allowing drivers to get in some dry running, indeed, Jenson Button is currently in the 21.4s. However, there were times when it looked as though heavy rain in the area might bring the test to an early end.

Takuma Sato has revealed that he came close to rejoining Formula 1 on no less than three occasions on the run-up to the 2010 season, eventually electing to join KV Racing in America's IndyCar Series instead; the Japanese driver will compete in his first race on the same weekend as this year's F1 season-opener.

Rain or shine, Felipe Massa is content with the handling of his Ferrari F10 after passing the car over to Fernando Alonso for the conclusion of the second Jerez test. The Brazilian notched up a total of 164 laps over the course of Wednesday and Thursday and remains positive, despite the weather.

While US F1 uses Twitter to report that all is well and that there will be more news to follow, it is reported that driver Jose Maria Lopez has already agreed a deal which will see him join Bruno Senna at Campos.

Jacques Villeneuve is highly excited by the fact that he could be racing Michael Schumacher in Formula 1 again this year after it seemed that the careers of both drivers were over three years ago. The French-Canadian hopes for a place on this year's grid with the Serbian Stefan GP team.

1997 Champion Jacques Villeneuve freely admits that he is aiming to be back on the Formula 1 grid this year in a field of cars which he believes will better suit his driving style than at the time of his F1 exit in 2006. The French-Canadian targets a slot with the Stefan GP team, which could enter the sport should another team fail to do so.

Having developed its car only with computer technology as opposed to the use of a wind tunnel, the Virgin Racing team was delighted to see that readings in Jerez on Thursday continued to match those predicted with CFD (Computation Fluid Dynamics) back at base in the United Kingdom.

Friday sees the teams continue to work around the weather as best as possible in Spain on what had been a highly disrupted test session in Jerez. Six teams have been quickest on as many days since the Andalusian venue first hosted a day of pre-season running last Thursday.