Sebastian Vettel has indicated hopes of being released early from his Red Bull contract were blocked by the team.
Marussia driver Jules Bianchi remains "critical but stable" in hospital following his Japanese Grand Prix crash.
Daniel Ricciardo believes the demise of Caterham and Marussia would represent a bitter loss for Formula One.
Sebastian Vettel feels it will be "a shame" if he is unable to run in qualifying ahead of Sunday's United States Grand Prix.
Our F1 tipster Tom Millard previews the US Grand Prix and feels Kevin Magnussen is still being underrated by the bookies.
Former F1 stars have criticised Bernie Ecclestone's controversial double-points system for the final race this season
Rob Smedley believes F1 will be wasting money if plans to unfreeze the current engine rules are pushed through for 2015.
Marussia have become the second Formula 1 team in a matter of days to be placed in administration.
Formula 1 supremo Bernie Ecclestone has given special dispensation to Caterham to miss the next two races.
Romain Grosjean is on the brink of being confirmed as a Lotus driver for 2015.