@MonkeySeat: One world championship certainly doesn't seem enough for a guy that talented. When you recall just how good he was at McLaren when reliability cost him in 2005, it seemed he and Alonso could dominate the sport for the next few years. And then Messrs Hamilton and Vettel arrived....
@rockedin123: He's third!
@MikeKuchinsky: He stopped earlier in the session. His car has been stripped down in the Mercedes garage and looks like the engine might be being looked at. A concern for the world champion so early in the weekend...
In fact, it looks like they could be changing the gearbox. Hard to tell from the images of the Mercedes garage.
@rockedin123: Ah! My apologies.
Top speeds aren't everything remember. Lots more to F1 than being quick in a straight line.
@Konji: It's fastest through the speed trap, ie. the fastest point on the circuit. Doesn't measure how fast cars are able to take a slow- or high-speed corner.
Reports starting to trickle in that it is an engine problem for Hamilton.
Perez runs deep at the left-hander at Turn 9 but he manages to carry on.
@gaurav243: Five-place penalty.
We're approaching the final ten minutes of the session.
@gaurav243: Not during practice, no. If the engine is changed during parc ferme then yes.
From our guide to the 2015 regulations: "A grid drop will still apply for changing certain components after drivers have exceeded their initial allotment, but any unused penalty will be converted into a time penalty for the race rather than carrying over to other events. This will also apply in the case of changing an entire power unit, previously resulting in a pit-lane start, with a cumulative penalty for each component being installed and, if necessary, a time penalty for the race."
@Konji: Good for the sport, maybe, but not great for Williams. She's seen very much as a good test driver. When you see her career record you can see why she's not fancied much as an out-and-out racer. Sutil brings with him race experience.
Mercedes has now confirmed it officially - engine trouble for Hamilton. How will this affect the world champion's grand prix weekend?
@mafster: That's all very much down to personal opinion. Certainly, guys like Hamilton, Alonso, Vettel, Kimi are in an elite bracket and were always ear-marked for F1 as a result. But then you look at WEC and guys like Tom Kristensen and think sometimes the best drivers slip through the F1 net. Certainly a guy like Marcus Ericsson isn't one of the Top 18 drivers in the world, if that's what you mean.
Speaking of the championship, Rosberg is lapping again but slower than his earlier pace.
@rockedin123: Don't start me on that one ;)
@gaurav243: There's been a slight tweak to that in this year's rules. Instead of doing so at the start of FP3, a car will only considered to be in parc ferme conditions from the beginning of qualifying.
It literally translates as "closed park" and is the period of time when very minor adjustments are allowed to the car. You basically have to enter the car you want to race.
We're approaching the final two minutes so just a couple of laps available to every driver now.
That from Mercedes to clarify TV reports of an engine change in Hamilton's car.
Perez runs across the tarmac at Turn 13. It was there, remember, that his hopes of winning the 2012 race evaporated after he ran wide while pursuing Alonso. Speaking of which, the Spaniard then locks up and runs deep at the same spot.
Massa complaining his drinks tube is on his back! Tells Williams they need to sort that out because if it happened in the race "it would be a disaster".
And the chequered flag is out. Drivers will complete their current laps.
We'll have another Virtual Safety Car test again. This is a new introduction for double-waved yellow to neutralise the speeds of drivers. The dashboards will display a delta time drivers must stick to, with penalties handing out for failing to do so. This in response to Bianchi's crash last year.
These minutes is for drivers to practice keeping below a delta time
Wow. Seeing a big de lamination on Button's front left tyre. A huge chunk hanging off.
Anyway, that's all we have time for from this session. Rosberg top, but Raikkonen within three tenths of the Mercedes with a lap at the close of the session I completely missed. Can Ferrari take the fight to Mercedes this weekend?
Please join me again in just over two hours for FP2 as we see the first qualifying simulations of the Malaysian Grand Prix.