2014 British Formula 1 Grand Prix - First free practice

08:47
Hello and welcome to live text coverage of opening practice for the British Grand Prix!
08:48
It's a pleasant day at the Silverstone circuit, with air and track temperatures sitting at 17°C and 25°C respectively
08:48
Mercedes was again the team to beat in Austria, but Williams provided a firm challenge
08:49
Now we're all set for another weekend to begin...
08:50
In terms of tyres, Pirelli has brought its Medium and Hard compounds to Britain
08:51
Meanwhile, there are also two DRS zones in place
08:51
The first comes between Turns 5 and 6, with the second following on the Hangar Straight
08:52
There are four driver changes for this morning's first 90-minute session
08:53
Daniel Juncadella is in for Nico Hulkenberg at Force India, Susie Wolff for Valtteri Bottas at Williams, Giedo van der Garde for Adrian Sutil at Sauber and Robin Frijns for Kamui Kobayashi at Caterham
08:54
Remember, you can get in touch with our live reporting team throughout the session
08:55
There is an interactive Facebook panel on the right-hand side of this page, while we can be found on Twitter via the @GPUpdate handle
08:56
08:58
The driver Williams alluded to was Italy's Giovanna Amati
09:00
The green light comes on at the end of the pit lane and FP1 gets underway
09:00
Magnussen is the first driver out in his McLaren
09:01
Plenty more drivers heading out for early install runs
09:03
Some final tweaks going on in the Williams garage before the team releases Wolff
09:03
Although this is her first official F1 outing, she has previous testing experience with the team
09:04
Just Massa and Hamilton yet to leave the pit lane
09:06
Bottas watches on as Wolff brings his Williams back to the pit lane
09:08
All 22 drivers have now been out for exploratory laps
09:10
Christijan Albers, Caterham's new team boss, is on the pit wall this morning
09:11
Kobayashi is hopeful that the Dutchman will be able to drive the team forward
09:11
His thoughts can be found on the main page of the website
09:12
A lull in activity as the teams prepare for their first proper runs of the day
09:14
Maldonado has stopped at the end of the pit lane
09:15
Mechanics arrive at the scene to push his car back to the garage
09:15
Ericsson, Button and Wolff head out again
09:17
Plenty of drivers getting practice starts in at the end of the pit lane
09:18
Ericsson posts the first time of the session, lapping in 1:50.811
09:20
Button moves to the front on 1:38.412
09:20
Massa is second, from Rosberg and team-mate Button
09:21
Wolff has stopped her car at the exit of Vale
09:21
She reports an oil pressure problem over the radio
09:22
That's devastating for the Scot, whose session could well be over
09:23
Raikkonen up to second for Ferrari
09:23
Gutierrez slots into third, just ahead of Massa
09:24
Hamilton goes second, 0.285 seconds adrift of Button
09:25
Williams reports that it is investigating Wolff's suspected oil pressure issue
09:25
"It feels like we're overheating the fronts," says Button
09:27
Rosberg goes fastest, ahead of Alonso and Raikkonen
09:27
Massa has had a massive accident at the exit of Stowe
09:28
The session has now been red flagged
09:28
Replays show Massa taking too much kerb on the exit of the corner, before sliding uncontrollably into the barriers and damaging both ends of his car
09:28
The Brazilian, thankfully, is unharmed, and begins the short walk back to the pits
09:29
What a disastrous start for Williams...
09:30
09:32
During the stoppage, a recovery truck is returning Wolff's car back to the pits
09:32
So we could see her back out later in the session, if the problem is easy to rectify
09:39
Wolff returns to the Williams garage, as does her car
09:40
But her engineer confirms that the car has a terminal engine problem
09:40
So that is Wolff's session over, after just four laps
09:42
09:43
On the subject of Marussia, Chilton reported oversteer during his early laps
09:44
With the track clear again, the session resumes
09:44
Kvyat is the first driver back out on track
09:44
He is followed by Raikkonen, Grosjean and Juncadella
09:45
We're now into the second half of the session
09:47
Kvyat displaces team-mate Vergne to go sixth
09:49
Plenty of work going on in the Lotus garage, with Maldonado's car up on jacks
09:53
Vettel posts his first time of the day
09:53
He goes sixth, splitting the Toro Rosso drivers
09:54
Rosberg is told that he has an ERS problem
09:54
He stays out, with the team keeping him up to date about the situation
09:55
Van der Garde has a moment at the first corner, taking to the run off
09:55
"ERS is now working again," Rosberg is informed by his engineer
09:57
Hamilton slots into second position, a tenth down on team-mate Rosberg
09:57
Alonso is third, from Ricciardo and Raikkonen
09:58
Rosberg posts a 1:35.424 to increase his advantage to seven tenths
09:59
Hamilton was on a quicker lap, but backed off as it developed
10:00
Ericsson has run off the circuit at Becketts
10:02
The Swede's car later became stuck on a verge while he attempted to rejoin the track
10:02
He is out of the car and his session appears to be over
10:04
Massa is wandering around the Williams garage, as mechanics work to fix his car
10:04
Here is a shot of the damage to the Brazilian's machine:
10:06
Ericsson's car has been removed and we're under green conditions once more
10:09
Button and Kvyat are the only drivers on track at the moment
10:15
The pace-setting Mercedes drivers are back out on track
10:15
We're now into the final 15 minutes of the session
10:16
Ricciardo reports a technical problem and is told to return to the pits
10:17
"I think we're going to hurt the gearbox," adds Ricciardo
10:17
After a lengthy spell in the Caterham garage, Frijns returns to the track
10:21
Frijns has posted a time, albeit it almost nine seconds slower than Rosberg
10:24
Frijns is gradually improving, but the car looks extremely difficult to drive
10:24
Lots of cars on track in the closing stages, but not many improvements being made
10:28
Replays show Alonso drifting his Ferrari through the final two corners
10:28
But he was in the dirty air of Juncadella's Force India
10:29
Vettel kicks up some dirt at the exit of the first corner
10:29
He continues without major drama
10:30
The chequered flag comes out to signal the end of FP1
10:30
Mercedes driver Nico Rosberg remains fastest, ahead of team-mate Lewis Hamilton and Ferrari's Fernando Alonso
10:31
Stay tuned to the website for a full report plus the latest news and photos
10:31
We will be back for second practice which begins at 2pm local time (GMT +1)