@Giu26: The team has not confirmed what the issue is so far.
We have a Mclaren on track. Button heads out of the pits and continues through at the end of the out-lap to begin his first timed lap of the day.
@NishanthDara: Soft I believe.
Meanwhile Kimi has lowered the benchmark further to a 1:23,.812.
Button's first timed lap is a 1:30.706.
Four laps will be enough for Button as he returns to the garage.
@gaurav243: What is 'wrong' with them? Well, they've accumulated more laps than anyone else, so that's not exactly a bad thing. Ferrari are setting faster times but this is the fourth day of testing.
@ralva8: Yes, though slightly misleading as Alonso's 1:35.553 was while the track was still wet.
@ME9#fan: Nope, he's currently in the garage.
@Dutch: I don't think he'll be regretting anything until we know the actual pecking order in the season.
Kimi came in to the pits briefly but is back out there, joining Grosjean.
I think it's more likely they would be a McLaren feeder team...
@Prithvi: Behind all the hype around Ferrari, Sauber and Toro Rosso have been accumulating a lot of laps without too many issues.
As you can guess, that means Hamilton is back on track.
@MathewGeorge: That's still unclear, but I think the reason they've found new backers will be because of that prize money.
@Dhruv: The rumour doing the rounds is that McLaren have some part to play in Marussia's revival, ahead of making it a B Team next year for Magnussen and Vandoorne. It certainly makes sense for them to do that.
Hmmm. Turns out Hamilton isn't back out on track after all, he still hasn't re-emerged.
In fact the track is now empty.
@Dhruv: I'm not saying it is a fact by any means, but it is one of the theories doing the rounds.
@DuncanSant: I imagine everything would change for them next year. At the moment, it's in everyone's best interests to get Marussia back to the grid.