Postpublished at 07:14 British Summer Time 25 March 2018
Jolyon Palmer
Former Renault driver
It's a battle of wits now. The sun is going down, the visibility is not going to be easy and the pace is going to be frenetic between the two leaders.
Vettel leapfrogs Hamilton to win during safety car
Mercedes say miscalculation caused confusion
Both Haas cars suffer identical pitstop wheel mistake after running well
Sirotkin, Ericsson, Gasly, Magnussen, Grosjean out
Get involved #bbcf1
Gary Rose
Jolyon Palmer
Former Renault driver
It's a battle of wits now. The sun is going down, the visibility is not going to be easy and the pace is going to be frenetic between the two leaders.
Lap 38/58
Daniel Ricciardo attempts a move at Turn 5 on Kimi Raikkonen but the Finn holds the door shut.
Lap 37/58
How's Valtteri Bottas getting on? He's into the top 10 after starting 15th with the Mercedes closing in to within a second of Nico Hulkenberg, who is seventh.
Lap 36/58
Some good battles unfolding on the track now.
Don't go anywhere!
Lap 34/58
This is great to see - a McLaren right in the mix at the front end of the field.
Fernando Alonso, in fifth, is currently the meat in a Red Bull sandwich but he'll be more than up for this fight.
Lap 33/58
Daniel Ricciardo is fourth and in with a very real chance of finishing on the podium now. He's eight tenths of a second behind Kimi Raikkonen. What a turn up for the books this race has been for the Australian.
Lap 32/58
The safety car heads back in and we are racing once again!
Lewis Hamilton attacks immediately but Sebastian Vettel is equally good from the restart and holds onto the lead.
Now Hamilton really has a race on his hands.
Lap 31/58
Fernando Alonso also benefits from the safety car appears as he gets up to fifth having pitted for softs.
Jolyon Palmer
Former Renault driver
We're hearing it was a loose front left on both of the Haas cars, so maybe there was a problem on the wheel guns.
We couldn't really see it. It looked like all the wheels were pointing the right way.
Right, let's recap an eventful few minutes.
Lap 30/58
Lewis Hamilton is still wanting answers.
"We thought we were safe, but there's obviously something wrong," comes the reply.
Don't think that's going to sate Lewis' curiosity...
The 5 live team have just seen the replay of Grosjean leaving the pits.
"There's a front-left tyre man waving his hands," says Jolyon Palmer.
"The second the car leaves, they are wincing, they are irate!"
So, it seems an unsecured wheel may be the culprit. Same for both cars?
So this is the order after that eventful few moments:
1) Vettel
2) Hamilton
3) Raikkonen
4) Ricciardo
5) Verstappen
6) Alonso
7) Hulkenberg
8) Vandoorne
9) Bottas
10) Sainz
Lap 30/58
"What just happened, guys. Why did you not tell me Vettel was in the pits," Lewis Hamilton asks.
"We're just reviewing," is the response.
Now the actual safety car is deployed.
Jack Nicholls
Radio 5 live Formula 1 commentator
Vettel first, Hamilton second! Didn't see that one coming...
Lap 29/58
Wow!
The virtual safety car has truly thrown the cat among the pigeons.
Sebastian Vettel pits to take on a new set of softs and emerges back on the track AHEAD of Lewis Hamilton.
The VSC speed limit doesn't apply in the pit lane and Vettel takes full advantag. He now has the race lead!
Lap 28/58
The virtual safety is deployed as the Haas is dealt with and that sparks a flurry of stops.