Fernando Alonso insists he is "quite comfortable" with his decision to quit Renault at the end of 2006 to make his ill-fated move to McLaren.

Alonso left Renault having claimed the drivers' championship in 2005 and 2006 and was widely tipped to seal a hat-trick of titles at Ron Dennis' McLaren squad. However, Alonso's relationship with Dennis quickly soured, with the Spaniard unhappy over what he perceived to favouritism towards Lewis Hamilton within the British team.

The 26-year-old last week severed ties with McLaren just 12 months into a three-year deal after finishing third in the title race behind Hamilton and Ferrari's new world champion Kimi Raikkonen.

"This year I had the opportunity to win the championship again, so from that point of view the switch [from Renault] was a good decision," Alonso said. "The team did a fantastic job to have a competitive car so I was able to fight until the last race and finished only one point behind the champion. So, in that respect, I think it has been a very positive season."

While Alonso's year was blighted by controversy, he nevertheless believes he will reflect on his 2007 campaign with a number of happy memories. "Outside the car for sure we had some ups and downs, better moments and worse moments, but I think this happens in every job," he said. "I will remember this year for my four victories I had in important places, where I had not won before, like Monza, and Monaco again for a second time."

Alonso revealed that he would not to dwell on the reasons for his championship defeat as he weighs up his options for next season - which include a return to Renault. "For every driver, when we lose a championship we start thinking about why we lost," he said. "But we lost, so there is nothing more we can do. It's history.

"The future is the place where you can change things - and the future already has begun. Looking back over my shoulder, I feel quite comfortable.

"Did we lose the championship due to strategic mistakes? Well, a championship is not lost in a single race so there are many reasons why we did not win.

"Hopefully for next year I've learnt some lessons and I'll try again."

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