@Sitank: Marussia sounded defiant several weeks ago when it cancelled a planned auction of assets crucial to its return to the grid. Since that there's been no news, however. While Marussia has a slim chance of returning I would say it's almost impossible Caterham will.
@NanDu: Lotus is currently en route to Jerez but it remains to be seen whether it can get anything done today - I would say it's unlikely.
@SaptakDas: It's only two months, so I wouldn't say it's that long at all considering 20 races are squeezed into 10 months.
Also, @NanDu, last year's benchmark was set by Kevin Magnussen (remember him?). A 1:23.276.
@FerrariFan: We'll have to wait and see!
The temperature has just climbed to a scorching 10 degrees Celsius.
@NanDu: You can expect more laps from everybody. A few people suggesting Honda are "sandbagging" but there is absolutely nothing to be gained from doing that here. These teams have plenty of troubleshooting issues as Laurence mentioned earlier which they need to overcome today.
@OnkarMohite: Force India decided to skip this test so it could maximise the time between now and Barcelona to develop their 2015 car. Originally it planned to run a modified 2014 car here but then changed its plans.
@MichaelDuncan: The McLaren is incredibly tight, especially when you compare it to last season. You sense there's already been a Peter Prodromou influence there.
@Justin-Time: Except from the noses! That's been the major regulation change this season.
Meanwhile, Sainz Jr heads out in the Toro Rosso.
Rosberg has just completed his 76th lap out there. Damn impressive for day one.
Sainz Jr has climbed above Vettel into third - his latest time a 1:25.327.
I'd say I disagree about Vettel. Wanting a change of scenery and lacking motivation are different things. Though that said, there is more motivation to be found at Ferrari for him now.
Vettel is back out on the circuit.
Vettel re-claims third position from rookie Sainz, lowering his best to a 1:24.279.
On the Red Bull livery, it's a wonder more teams don't go for a striking, one-off paint job every now and then. It's a great way to maximise exposure - far more than a bog standard launch or releasing a set of images to the media. No surprises that its Red Bull showing the rest how its done.
@SaptakDas: Yes, it's a random call. Some do back to back days, some split, it is all down to the preference of the teams.
Rosberg ticks over to his 93rd lap.
Bottas, meanwhile, has moved into second with a 1:23.906. The pecking order starting to look more familiar.
@ehdbjs: He didn't really do a timed lap. McLaren's initial runs were troubleshooting 'installation' laps, so he wasn't flat-out by any means. At the moment mileage is key for McLaren.
@ehdbjs: Exactly. No point dwelling too much on the headline time as the key at the moment is set-up and getting to grips with that new Honda engine.
Vettel now moves to within a second of Rosberg, crossing with a 1:24 flat to go third.
@ehdbjs: Impossible to predict, really. They have until 5:00 local time to get back out on track.