Jenson Button insists there can be no excuses this season as he seeks to try and challenge for a second F1 title in what will be his third year with the McLaren team.
Button switched to McLaren as defending champion in 2010 and has quickly fitted in to the Woking-based outfit, most notably last season where he became the first driver within the team to beat Lewis Hamilton in the championship standings.
Going into the 2012 season, Button admits he feels a lot more at home within McLaren after his strong year last year and says he feels everything is in place to challenge Sebastian Vettel for the title.
"My first year at McLaren I initially thought would be very tough, moving to a new team, but it was a pretty good year really, a very good learning year," he told Press Association Sport
. "Last year I felt I did the best with the car I had, that I really grew with the team, felt a big part of McLaren, not just a driver, but a big part of the team.
"So there are no excuses this year. I feel we have everything. The relationship I have with my engineers and mechanics is very good, and there's a really good understanding there. There's nothing to fall back on and say 'This is the reason why we didn't win in 2012'.
"I'm very happy now with my position within the team, and to win the world championship with McLaren would be amazing. To win anything would be amazing, but with a team you've been with for two years, have such a good relationship with and feel a big part of after such a short period, it would mean more than just arriving and driving the best car."
Button will return to action on Thursday for the third day of testing at Catalunya with the new MP4-27 and he said he was pleased with the progress the team has made with the new car so far.
"We're on target," he said. "There's nothing to say we're one-and-a-half seconds quicker than anyone, but then there's also nothing to say we're not fast. The car feels nice to drive, I feel very comfortable in it and it does everything you expect it to. It's just developing it now for the first race.
"But it's good to be back. I feel very confident in my ability, with my input into the car and the team feeling I'm playing my part. It's all moving in the right direction, so I'm happy.”