Red Bull Racing's Mark Webber believes continuity could be the keystone in his team's title bid ahead of the new F1 season.

The Australian was at the heart of an absorbing four-way title battle last year involving Red Bull team-mate Sebastian Vettel and Brawn GP duo Jenson Button and Rubens Barrichello, and Webber expects to be in the thick of the action again in 2010.

Red Bull ultimately lost out to Brawn and Button in the tussle for last year's titles, but the Milton Keynes-based team have one key advantage in their favour this time around.

With Button and Barrichello moved on to pastures new and the Brawn team the subject of a takeover by Mercedes over the winter, Red Bull's direct rivals in 2009 have been decisively rent asunder.

Changes in driving personnel at Ferrari and McLaren hold the potential to upset the applecart in both those camps, leaving Red Bull as the only race-winning team from last season to retain an unchanged line-up.

"Continuity is a very good thing, particularly drivers and their engineers and understanding what you need," Webber told reporters at the launch of the team's new RB6 car in Jerez today.

"Our continuity in the team over the past few years I think will help us, particularly in the first part [of the year].

"It's going to be a strength for us early on.

"I think the team has some very good, high expectations. We had a great season last year and we are not looking to go backwards from that position, so we have some tough goals to meet - as do all the other teams.

"To go forward from there we need everything right and that's what we've tried to do as best we can.

"We are very excited, we've worked hard and there's been a lot of anticipation."

The Renault-powered RB6 revealed in Jerez showed slight changes from last year's car, with extra length to accommodate a bigger fuel tank - a result of the new-for-2010 ban on in-race refuelling - an exaggerated 'v' nose section and the shark-fin engine cover which is fast becoming de rigueur for 2010-spec cars.

"This car is a limousine," Webber continued. "We had only small aerodynamic changes so we didn't go crazy.

"It's very rewarding to see lots of people have used our concept from last year and put it into their cars this year. That was a real feather in the cap for our people, and particularly Adrian [Newey, Red Bull's technical chief] and how clever he is.

"Hopefully this year's car is enough to be having a try at the front and challenging at every grand prix track we go to."

Red Bull took the decision to miss the first pre-season test at Valencia last week to further fine-tune their 2010 car, and team principal Christian Horner is confident the team is ready to come good on the enormous potential shown over the past 12 months.

"I think that 2009 was a massive year for the team," said Horner, whose team won six grands prix last season.

"We made a huge step forward. I think the group matured very well.

"You have to remember that Red Bull Racing is still a relatively young team, so I think the lessons that we learned in 2009, with the performance of the car and how that evolved during the season as well, with the stability throughout the winter, we are in good shape for 2010.

"Our target is obviously to win the championship, but we totally respect the quality of the opponents we have. We have set ourselves very aggressive targets.

"I think you are going to have four teams that are race-winning contenders this season.

"McLaren and Ferrari look like they have come up with good cars, and for sure the Mercedes GP team is going to be competitive with its driver line-up.

"But we are quietly confident we've made good progress during the winter. We've kept our heads down. We've kept working on the concept that served us well last year - and Adrian and his guys have come up with another very good car."