Hello and welcome to our live coverage of the Hungarian Grand Prix from Budapest. Race start 13.00 BST.

Hamilton still managing the gap to Grosjean. Another slight mistake from the Frenchman.

Looks like Button could be switching to a three stopper.

Grosjean visibly closer as Hamilton comes up to the back markers. Could be the Lotus’ chance.

Grosjean has pulled it back a little bit and is closing on Hamilton again, now 1.2 seconds behind. Perhaps he just had two poor laps or made a small mistake.

Button saving his KERS to counteract Vettel’s DRS.

Vettel is now swarming all over the back of Button so lots of mini scraps going on.

Grosjean has dropped back slightly in the dirty air. It’s so difficult to pass here.

Grosjean now all over the back of Hamilton, his tyres really working in this stint but he needs to get past soon and Hamilton’s tyres will last longer.

Hamilton is on the harder compound and Grosjean on the softs which may be why the Lotus is reeling him in. Now just 1.1 seconds in it.

It looks like a straight fight between the lead two at the moment. Webber all over the back of Alonso.

After the pit stop shake-up, Hamilton leads by 2.6 seconds, Button still a further eight behind.

Hamilton now on the medium compound tyre but Grosjean is flying behind him trying to make the time back.

Raikkonen pits for the soft compound tyre. He is out ahead of Alonso. Looks like it has worked out well for Webber.

Alonso cruises past Perez to get his place back.

And Grosjean is in. He rejoins still behind Hamilton as his stop was even longer. Lotus will be angry with that one.

It has allowed Grosjean to narrow the gap so can he put his foot down and take advantage?

Lewis Hamilton comes in for his first stop. His stop was 4.2 seconds so not a great one.

Button manages to maintain his advantage but Alonso is now behind Perez.

Sebastian Vettel is now in for mediums, as is Alonso.

Senna, Rosberg and Di Resta all in.

They have all swapped to the medium compound.