Where before there was merely smoke, now there are the first obvious signs of fire.
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.
The pendulum has swung back in Hamilton's favor in Singapore.
Nico Rosberg took his car to the garage after just 15 laps.
Just seven thousandths separated the Mercedes duo.
The track map for Formula E's Monaco ePrix has been revealed.
Fernando Alonso has been displaced as the fastest man in Singapore, but not by much.
The talk surrounding three car teams returning to F1 has been escalating.
Fernando Alonso was "visibly upset" on Thursday as he angrily slammed the latest silly-season speculation about his future.