Caterham could be left stranded without tyres ahead of the forthcoming Japanese Grand Prix, according to the Dutch newspaper De Telegraaf.
Mercedes has acknowledged it needs to up its game in the reliability stakes following former championship leader Nico Rosberg's problems in Singapore.
Christian Horner has all but written off Daniel Ricciardo's chances of beating the Mercedes drivers to the 2014 title.
Nico Rosberg fell out of the Singapore GP after just 15 laps.
Nico Rosberg took his car to the garage after just 15 laps.
Scuderia Ferrari will use this motor oil for the first time on the track at the 2014 Singapore Grand Prix.
Fernando Alonso was "visibly upset" on Thursday as he angrily slammed the latest silly-season speculation about his future.
The FIA is starting to back down from its controversial new policy.
An F1 pundit thinks long-time president Luca di Montezemolo's departure is good news for Ferrari.
Mark Webber thinks "small, subtle details" are all that is holding back his former F1 colleagues Sebastian Vettel and Kimi Raikkonen in 2014.