4 October 2012 Last updated at 14:07

Lewis Hamilton on Mercedes move - I feel fantastic

Britain's Lewis Hamilton says he "feels fantastic" having made his decision to leave current team McLaren at the end of the season for rivals Mercedes.

The 2008 world champion talks of his "excitement" about the move and admits it would have been "too easy" to stay at the team where he began his career.

Hamilton has six races left this season for McLaren and stands fourth in the drivers' championship with 142 points, 52 off leader Fernando Alonso.