Lewis Hamilton: No regrets leaving McLaren

• Hamilton will end his 14-year relationship with McLaren and drive for Mercedes next season
• McLaren boss Martin Whitmarsh has said he thinks Hamilton rushed into his decision to leave

AUSTIN, Texas (AP) — Lewis Hamilton says he is very happy about his decision to leave the McLaren team for Formula One rival Mercedes after this season.

McLaren team principal Martin Whitmarsh recently said he believes Hamilton rushed into his decision after the Sept. 23 Singapore Grand Prix and will regret the decision to end his 14-year relationship with the team. Mercedes has won one race in three seasons.

Hamilton said Thursday at the U.S. Grand Prix he was surprised by Whitmarsh's comments. Hamilton says it was an emotional decision to leave but one that he's very happy with. Hamilton says he's still giving 100% to the McLaren team in the final two races of the season.

Hamilton, the 2008 world champion, signed a three-year contract with Mercedes.