Mark Webber has bemoaned Red Bull's poor performance during the European Grand Prix in Valencia.
Renault, Red Bull, Honda and Force India all failed to finish in the points in Sunday's European GP.
Renault, Red Bull, Honda and Force India all failed to get through to the final qualifying segment at Valencia.
Red Bull, Williams and Toro Rosso all failed to find their way into the top ten on the timesheets for Friday's Euro practice.
Fabrice Lom discusses the team's preparations for the European Grand Prix on the streets of Valencia.
Once again Red Bull have released a preview that has very little to do with the actual grand prix...
Red Bull are gearing up for a final push in this year's campaign as the team bids to finish fourth in the Constructors' Championship.
Red Bull team boss Christian Horner is looking forward to seeing how the partnership between Sebastian Vettel and Mark Webber plays out next season.
Mark Webber admits he's has serious concerns about the new KERS system following BMW's failure to establish why a mechanic was shocked.
Christian Horner is confident that Red Bull, together with engine partner Renault, will find a solution to their KERS problems before the new season.
There were top ten finishes in Hungary for Renault, BMW and Red Bull although the latter narrowly missed out on the points.
While Renault and Red Bull both found their way into the top ten in Saturday's Hungarian qualifying, Seb Vettel narrowly missed out for Toro Rosso.
Red Bull, Toro Rosso, Honda and Force India all put in solid work during Friday's practice but failed to break into the top ten.
David Coulthard will use the same engine for the third race in a row at this weekend's Hungarian Grand Prix.
Red Bull team boss Christian Horner has confirmed the team had discussions with "big names" before signing Sebastian Vettel on a long-term contract.