World champion Fernando Alonso is confident his switch from Renault to McLaren will enable him to pursue a third successive championship title.

The 25-year-old is part of a new-look McLaren team alongside hot British prospect Lewis Hamilton, and much is expected of the new MP4-22 car.

And, ahead of the opening race of the season in Australia this weekend, Alonso admits he feels at home with his new team.

"At McLaren I have found a great atmosphere," he said. "The people are really very focused on the target to come back with success and to regain the dominant position in Formula One, and I have to say thanks to the team for all the huge work they did in the winter.

"They have improved and developed the car a lot compared to last year.

"They work day and night and I think we arrive here in Australia with a really competitive car and I think we can fight for victory.

"I feel really, really happy with the move and really confident for the championship."