Hamilton out of FP2 after crash 15 minutes into session
Hamilton OK but team say car needs to be "fully stripped and checked"
The Mercedes driver earlier finished quickest in FP1 from Rosberg, who topped FP2
Is F1 getting too complicated?
Ast: I don't think it's a coincidence that the best racing happened when the cars were simpler.
Keris Smith: Yes!!!! Just need a steering wheel 3 pedals and a gear stick!
Image source, Getty ImagesScrap that, Lewis Hamilton has decided to pop out now and give his team-mate some company. Both have inters on with some damp patches still on the track.
Fifteen minutes into the session and there's very little happening on the track to keep the fans entertained. They're all currently watching Nico Rosberg as he weaves his way around the circuit on his lonesome.
Is F1 getting too complicated?
Wondering what is happening on the track? Not a lot. The drivers are currently waiting for it to get a bit drier after popping out for their installation laps.
Andrew Benson
Chief F1 writer at Hungaroring
One novelty this weekend is the policing of track limits electronically at two corners - Turns Four and 11. This has been introduced because there are new kerbs, behind which is a run-off area of the same height. Track limits have been a controversial issue at the last two races, and McLaren driver Fernando Alonso welcomed the move. “It is good to have an automatic system and we are not relaying on the marshals,” he said.
Sauber’s Marcus Ericsson added: “Hopefully this new system will work because I can see some places where there is potential lap time to gain by going off track and I think that discussion is not something we like. So hopefully this new system is reliable to be used also in qualifying and in the race.”
Charles Leclerc is taking part in first practice, not Roger Leclerc, of Allo Allo fame.
There's a couple of driver changes for this morning, with Esteban Ocon in for Kevin Magnussen at Renault while the excellently named Charles Leclerc subbing for Esteban Gutierrez at Haas.
The green light flicks on at the end of the pit lane and first practice is under way. Sebastian Vettel, Pascal Wehrlein and Nico Rosberg are among the first lot to head out, all sporting inters on their cars.
Image source, Getty ImagesHow far back should we go? Sebastian Vettel would like to see F1 cars stripped back to like they were in past decades
Do you agree with Sebastian Vettel? Should we go back to a simpler time with simpler cars, or do you prefer seeing the very best that current technology has to offer on the track?
What would you change, if anything, in F1?
Get involved #bbcf1,, external text in on 81111 (UK only) or post a comment on the BBC Sport Facebook page.
Image source, Getty ImagesLike Sebastian Vettel, Fernando Alonso is also not particularly enthralled by the current state of Formula 1, saying it is too controlled and restrictive.
The two-time champion said F1 needed "a little bit more freedom" for the teams to design and operate their cars - and in the running of the sport in general.
"If you painted all the cars black, you would not know which team built which car," said Alonso. He added that drivers were "allowed to breathe and not much more".
Image source, Getty ImagesAsked about radio restrictions, Sebastian Vettel was his typically sweary self. As it is pretty early in the morning, I'll leave the expletives out from the Ferrari driver's response.
"I think it's a joke," he said. "I looked at the race [British GP] after and I found as a spectator it was quite entertaining to hear a driver a little bit panicking on the radio and the team panicking at the same time.
"I think it puts the element of human being in our sport that arguably is very complicated and technical, so I think that's the wrong way. There's a lot of boring stuff on the radio that got banned, I don't see the point, I think if you want to change it you should change the cars. I have no problem, let's go back to V12s, manual gearbox, two buttons, one for pit speed limiter and one for radio just to confirm when we are coming in and other than that, not much electronics to look after, which there's no point then to memorise a lot of things."
Image source, Getty ImagesSpeaking of Nico Rosberg, his radio boo boo at the British GP has led to the FIA tightening rules on radio messages for Hungary and beyond.
Rosberg was demoted from second to third after a breach of rules when Mercedes told him how to fix a faulty gearbox, resulting in him avoiding having to retire from the race.
New rules state a team must call a driver in to the pits if he suffers a similar issue, and they can then explain the issue to the driver.
Andrew Benson
Chief F1 writer at Hungaroring
Nico Rosberg's new deal is no surprise given it has been telegraphed by both team and driver for some time.
The former Williams driver, who has 19 F1 wins in his career, has had a sometimes difficult relationship with Briton Hamilton, but it is a relationship Mercedes feel they can control.
The driver line-up is perfect for them. In Hamilton, they have arguably the fastest driver in F1. In Rosberg, they have a man who can win when Hamilton hits trouble and who is good enough to beat him on merit from time to time.
Retaining both drivers gives the team stability ahead of 2017, when a new set of regulations will dramatically change the cars. It's the obvious choice.