Ahead of today's second practice session, the air temperature is 28 degrees C, while the track temperature is 44 degrees.
Nonetheless, it's while since the two Red Bulls topped the timesheets.
The smooth nature of the track surface, not to mention an unusual amount of dust, saw almost all the drivers take advantage of the escape roads at one point or another, some - we're talking Romain Grosjean - appearing to spend more time off the track than on it.
While it is now 17:00 (local time) the air temperature in only slightly down on this morning, though the track temperature is around 9 degrees lower. With Sunday's race - and qualifying - taking place at the same time, conditions for this session are more representative than earlier.
The lights go green and Palmer and Magnussen lead the way. As more drivers head out, all are on the softs.
Sterling work by the Force India crew means that Perez is ready to go out any time soon.
True to form, Grosjean is off - read down the escape road - at T3, while Palmer locks-up at T2. "I have no efficiency with the brakes," claims Grosjean.
Verstappen gets the ball running, as far as the big guns are concerned, posting 45.084, as Vettel posts 46.089 and Kvyat 46.868.
Raikkonen complains that his tyres are cold, the Finn subsequently running wide in T15.
As Verstappen improves to 44.288, Grosjean is at it again. "When I hit the brakes the bite is not there," he warns.
Vettel off at T1, Sainz T4 and Kvyat at T15. While the other two soon get going again, the Russian is unable to escape from the cul-de-sac, his attempt at a three-point turn a miserable failure.
In the meantime, Verstappen continues to improve, the Red Bull driver now down to 43.988.
Ricciardo posts 44.861 to make it a Red Bull 1-2 (again), while Alonso posts 46.024 to go third.
As Bottas goes off at T3, Hamilton splits the Mercedes duo with a 44.525.
"It's ridiculous, ridiculous," wails Grosjean, the Frenchman subsequently heading back to the pits.
As more and more cars go off, Verstappen provides some insight; "the car is changing from lap to lap," he reveals.
Perez goes third (44.716) and Ocon fourth (44.733), as Raikkonen posts 44.875 to go sixth.
Replay shows Ocon have a very close encounter with the wall but somehow getting away with it.
"It's a pain in the arse, this ******* front locking," complains Kvyat. "Keep your head down, we are looking at it," the Russian is told, before being advised that he's not the only one encountering such issues.
Despite his issues, Kvyat is first to make the switch to the supersofts, with Bottas being the second. Meanwhile, Massa is on the hards.
In the Haas garage, Grosjean is having his front brake material changed.
Bottas, on the supers, improves to fourth (44.309), ahead of Ocon, Hamilton and Raikkonen.
Just after being told he is "over pushing", Kvyat gives the barrier a whack at T15 which appears to cause damage to the Pirelli hoarding rather than his car. Indeed, the VSC is deployed as the hoarding debris is removed from the track.
Verstappen switches to the supers as Hamilton goes off at T2. Moments later Vettel makes the same mistake.
On the supersofts, Raikkonen posts 43.723 to take the top spot from Verstappen who has only marginally improved on the softer rubber.
No sooner has Vettel upped the ante with a 43.615 than Verstappen bangs in a 43.362.
As Vettel goes off at T2 (again) Grosjean is back complaining (again).
Vettel goes off at T8, however to further compound the madness of this track, so too does Massa, meaning that the German has to wait until the Brazilian has rejoined the track before he can get back to work.
Elsewhere, Hamilton is odd at T15, which means another yellow flag which means further frustration for all concerned.
In quick succession, Verstappen is off at T1, while Palmer has hit the wall at T8.
"All okay with the car Jo?" Palmer is asked. "No, I've hit the wall," comes the reply. "Sorry."
The session is red flagged.
Check out our Friday gallery from Baku, here.
As the car is removed from the track, and with 41:00 remaining, it's: Verstappen, Bottas, Raikkonen, Vettel, Stroll, Ricciardo, Perez, Kvyat, Ocon and Hamilton.
Replay shows Palmer's incident was very similar to Perez' in FP1, the Briton hitting the inside kerb and then the outer barrier, damaging his right suspension in the process.
Meanwhile, as he makes his way back to the pits under the red flag, Grosjean warns: "I think something is pushing the car under braking, I am on a slow lap now and it's like the car is not slowing down."
The session resumes with 35:00 remaining, Ricciardo is among the first out.
No sooner are the cars back on track than the yellows wave as Ocon goes off at T2.
"Looks like Canada's "Wall of Champions" definitely has an Azerbaijani rival," tweets Pirelli.
Oh dear. Alonso has slowed to a crawl. "Engine, engine," he tells his team over the radio. Not for the first (or last) time this year, he throws out the headrest.
To add to the pantomime, having walked away from his stricken car, Alonso has to run back after the marshals somehow forget to black the car from rolling away... which it inevitably does.
Despite the excursions down the tracks various run-offs, most drivers are now on their long runs.
Meanwhile, in the Haas garage, Grosjean is out of his car. "I braked at the same place as the lap before and it just locked," he angrily tells his crew.
On and on and on it goes, or should that be off and off and off they go, as Hamilton is off at T1, Vettel at T3 and Hamilton again at T2.
"Are they getting quicker, or are they dropping off?" asks Ricciardo of his rivals. He is told that his teammate is consistently in the mid 1:46s. Vettel also on a similar pace.
Hamilton and Raikkonen almost trip up over one another at T1 after the Briton locked-up.
"You are the quickest car on track," Vettel is advised, having posted a 46.069.
Bottas is back in the pits with the mother of all flat spots. AS a result his session is over, while Hamilton - whose car is up on its stand - also appears to be heading for an early bath.
With less than a minute remaining Verstappen is off an in the barriers at T1. "I hit the wall," he admits.
Replay shows him lock-up but as he turns as if to head into the run-off the car simply slides into the barriers.
A disappointing end to what has been a good day for the youngster.
An interesting session, and one which underlines the fact that Red Bull's performance in FP1 was no fluke.
On the other hand, the amount of offs and subsequent yellows we've seen today, makes one wonder whether Baku really is fit for (F1) purpose, certainly with these tyre compounds. That said, it could make for a fascinating qualifying session.
And then there's Hamilton, who appears to be having another Sochi, Monaco-type weekend.
Verstappen is quickest, ahead of Bottas, Ricciardo, Raikkonen, Vettel, Stroll, Perez, Kvyat, Ocon and Hamilton.
Massa is eleventh, ahead of Alonso, Sainz, Magnussen, Hulkenberg, Palmer, Vandoorne, Wehrlein, Ericsson and Grosjean.
Check out our Friday gallery from Baku, here.