McLaren team principal Martin Whitmarsh has backed both Jenson Button and Lewis Hamilton ahead of the 2012 campaign.
The McLaren pair largely failed to trouble Red Bull's Sebastian Vettel in 2011, with 2008 world champion Hamilton finishing fifth in the drivers' standings and 165 points behind the German star.
Button enjoyed a better campaign and managed to finish second in the standings, but the 2009 world champion was still 122 points adrift of Vettel at the close of the season.
However, McLaren feel they have produced a more competitive car ahead of the 2012 season and Whitmarsh insists both drivers are set for impressive campaigns.
The McLaren chief also reiteratted that the team see both drivers as equals and will not favour one over the other.
He told the official Formula 1 website: "As you'd expect, with pre-season testing as restricted as it is nowadays, our race drivers will be doing as much as they can.
"Both Jenson and Lewis will consequently be spending a lot of time in Spain over the next few weeks, and both of them are raring to go.
"We're fortunate that we have two world champions in our driver line-up - a claim that can be made by no other team - and McLaren's ethos has always been, and remains, to treat both its drivers as equal number-ones.
"That's what we've always done, that's what we'll do this year, and as long as I'm around that's what we'll always do."
The first official pre-season test ahead of the 2012 campaign will take place in Jerez, Spain, on February 7.