Rosberg leads the way on final day of testing
updated 1:35 PM EST, Sun March 3, 2013
Nico Rosberg was the fastest man on the track at the final day of testing at Barcelona Sunday.
- Nico Rosberg fastest in testing at Barcelona Sunday
- Rosberg confident ahead of new season on March 17
- Ross Brawn pleased with Mercedes team progress
(CNN) -- Nico Rosberg believes Mercedes are on the right track ahead of the new Formula One season following an impressive final day of testing in Barcelona Sunday.
The German driver clocked a fastest time of 1 minute 20.130 seconds to record the best time of any driver over the four-day session, while also eclipsing the times set in the opening week of February.
"I'm pleased with our pre-season testing programme. We have achieved a lot of mileage and I can feel that the balance of the car is good," Rosberg, who put in 131 laps on Sunday, told reporters.
"I have the general feeling that we are in a better position than in the second half of last year but this is testing not racing, of course."
China's Ma lands Caterham spot
Pastor Maldonado took the new Williams for a spin at Barcelona on February 19 following the launch at Circuit de Catalunya.
F1 teams unveil 2013 cars
Jimmie Johnson raises his arms in victory after winning the NASCAR Sprint Cup Series Daytona 500 on Sunday, February 24, in Daytona Beach, Florida.
Daytona 500: The best photos
Sebastian Vettel celebrates with his team and admirers after a pulsating race at Interlagos in Brazil. But where does the Red Bull driver rank in the pantheon of F1's virtuosos?
How good is Sebastian Vettel?
Teammate Lewis Hamilton looked in good shape on Saturday, getting around the track in 1 minute 20.558 seconds, while double world champion Fernando Alonso set a fastest time of 1 minute 20.494 seconds in his Ferrari.
The new season starts in Melbourne on March 17, but Rosberg says conditions in Australia will be completely different to those experienced in the European winter.
He added: "The conditions in the first race will be completely different to here as it will be much hotter in Melbourne and Sepang (the venue of the Malaysian Grand Prix) so we need to wait and see."
Read: First lady of Formula One
Mercedes team boss Ross Brawn believes the hard work put in by his drivers will prove crucial to the team's success in the year ahead.
"I am pleased with the progress that the team has made over the last month and the steps forward that have been made with the car," Brawn told reporters.
"Lewis has settled into the team extremely well and everyone has enjoyed working with both him and Nico throughout the three tests.
"We're realistic about our performance here and our position once we get to Melbourne, and we look forward to the challenge of a new season ahead."
Part of complete coverage on
Track the new Formula One season as it progresses, circuit by circuit, race by race.
updated 9:24 AM EDT, Thu March 14, 2013
Can the new F1 season live up to last year's standards? Find out the need-to-know stories for 2013.
updated 7:48 AM EDT, Thu March 14, 2013
CNN looks ahead to the Australian Grand Prix, the first F1 race of the 2013 season.
updated 1:24 PM EST, Thu February 28, 2013
Adrian Sutil will be Force India's second driver for the 2013 Formula One season, pledging to make the most of his "second chance".
updated 8:52 PM EST, Fri March 1, 2013
Christmas Abbott, 5'3 and 115 pounds, is the first woman to join a NASCAR pit crew team.
updated 7:35 PM EST, Mon February 11, 2013
The first race in Melbourne is just around the corner and Formula 1 teams are gearing up for a season which promises to be as technical as it is tactical.
updated 7:19 AM EST, Fri March 1, 2013
When the new Formula 1 season gets underway in March, for the first time there will be a woman running a team's entire operations from track to boardroom.
updated 7:22 AM EST, Mon January 21, 2013
The Dakar Rally is one of the world's most dangerous motorsport races, and this year's edition has already been marred by tragic deaths.
updated 2:20 PM EST, Thu January 31, 2013
The famous circuit of Nurburgring is confirmed Thursday as the venue for the 2013 German Grand Prix after reaching a deal with F1 chief Bernie Ecclestone.
updated 10:36 AM EST, Tue November 27, 2012
It did not take very long for the inevitable question to be asked -- just how good a driver is Sebastian Vettel?
updated 9:49 AM EST, Thu January 24, 2013
Changes to tires will make Formula 1 racing faster with more overtaking in 2013, according to the sport's official tire supplier Pirelli.
updated 4:35 AM EST, Mon November 26, 2012
Michael Schumacher, Alain Prost, and contemporary pacesetters Sebastian Vettel and Fernando Alonso were all contenders.
updated 8:32 AM EST, Fri November 23, 2012
Who is the greatest F1 driver of all time? Past and present drivers give their verdict on the contenders to CNN.
CNN has asked Formula One stars past and present, "Who is the best driver of all time?" Now we want to hear from you.
updated 4:48 AM EST, Tue November 20, 2012
A triumphant Lewis Hamilton called Sunday's United States Grand Prix the best race of 2012 but for many it was more important than that -- it was Formula One being reborn in the USA.
CNN's Ben Wyatt says Sebastian Vettel or Fernando Alonso will seal their place in F1 history in Brazil this weekend.
updated 2:41 PM EST, Sun November 25, 2012
The F1 title race will be fought over 20 races this season. Keep track of the latest standings in the drivers' and manufacturers' championships.
updated 10:20 AM EST, Fri November 16, 2012
Mario Andretti says the key to rekindling F1 in the U.S. is a buzzword that has been flying around Washington faster than a Ferrari -- stability.