Follow all the action from the opening session of the 2015 finale at the Yas Marina circuit.
- Red Bull secures engine deal for 2016
- Lewis 'wouldn't be allowed' current lifestyle at McLaren
- Alonso a tougher team-mate than Hamilton - Button
- Vettel rates Ferrari's season out of ten
- Painful 2015 was 'necessary' for Alonso
- Hamilton reveals NASCAR ambition
- Ricciardo: Renault needs a change of direction in 2016