Hello and welcome to ESPN's coverage of second practice for the Bahrain Grand Prix in Sakhir.
We saw a Ferrari one-two in FP1 but this one is likely to be a more representative session due to the cooler conditions.
@MJ: The figures of available tokens for each manufacturer before the season was: Ferrari: 10 tokens
Honda: 9 tokens
Mercedes: 7 tokens
Renault: 12 tokens
There's no tokens used so far, but this will likely change before Spain - traditionally a place for big upgrades across the package. We already know Honda is bringing a new engine to this race so that will involve some token spend.
The sun is setting in the distance and we are five minutes away from this session getting under way.
@MJ: Absolutely. The ability for all the manufacturers to use tokens this year really makes it an interesting fight, especially as Ferrari has slightly more to play with than Mercedes.
That the official Twitter account of Jenson Button's power unit. The age we live in, hey. Button stopped early in FP1 after a spin apparently caused by an engine shut-down.
@JamesZara: There are different bits of news floating about on that one, I'll try and give you an answer by the end of FP2!
The track is green and Massa is the first man out on track under the floodlights.
@MichaelBialocur: Always hard to guess until this session.
It seems Ferrari is in fact on a second power unit for both drivers. Ferrari apparently found "cracks" on the power units after the Chinese Grand Prix.
No installation lap for the Williams boys as they both carry on for a flying lap.
Bottas goes fastest with a 1:38.540, which is 0.001s quicker than Massa.
Raikkonen has started a flying lap of his own. The Finn topped this morning's session, remember. The track should be slightly quicker than this morning.
@RCC: No, those upgrades don't count. But those changes won't have any bearing on performance.
@MichaelBialocur: Maybe, but Schumacher/Rosberg was as much about MSC's time away from the sport. Bottas is a future WDC in waiting and Webber and Vettel aren't really a fair comparison, either. Webber was good but Vettel is one of the all-time greats already.
@ss: No, those penalties only apply for changes during a race weekend.
Raikkonen returns to the top of the timing screen with a time over a second quicker than Bottas.
Verstappen complaining about a lack of power from his Renault power unit.
Sparks all over the place at the moment. Great sight under the floodlights.
All 20 drivers, including the McLaren of Button, out on track.
Bottas improves to move within 0.777s of Raikkonen. Massa now 0.807s off the benchmark.
Rosberg runs wide again at Turn 11, which he did in FP1 earlier today.
Replay of Verstappen having a huge lock up coming into Turn 1.
Vettel goes quicker by nearly half a second.
Rosberg: "I need to change the brightness. Oh..no, I can do that myself." says Rosberg. Is that a man trying to get out of his old habits?
Hamilton goes top with a 1:36.795.
Alonso is already up to P5, with a 1:38.314. Very impressive stuff from the Spaniard in an underpowered Honda engine on a power circuit.
Alonso is matching the Williams drivers through the speed traps early on in this session.
Rosberg's first time puts him fourth behind both Ferrari drivers and 1.2s down on Hamilton.