A "lottery" track surface that includes a "huge bump" at Turn 1 could produce chaos in Formula 1's Hungarian Grand Prix.

Track conditions have been tricky from the start of the weekend with George Russell saying on Friday: “They've resurfaced a third of the track and unfortunately they've done a really bad job”.

Drivers raised their concerns about bumps and the quality of the asphalt in the Friday night drivers’ briefing and work was undertaken to try and smooth some of these bumps out.

There were also concerns about the asphalt opening up too, in places like the final corner where many drivers have struggled for grip this weekend.

Those struggles continued on Saturday with polesitter Lando Norris saying, “Honestly, just difficult to put a lap together here, with the new Tarmac and it being grippy in places and not grippy in others.

“At times, it feels like a bit of a lottery in certain corners.”

Williams driver Carlos Sainz was critical of the resurfacing job too and how it differed from the resurfacing 10 years ago. He said overnight grinding work had improved things but “not to F1 standards”.

Sainz continued: “Having said that, the circuit acknowledged they were a bit caught by surprise by it when they resurfaced it.

“My message to them is, back in 2016 there was a full resurface of the track and the tarmac was the best Tarmac resurface I've seen in a long time. Similar to Silverstone, similar to Jeddah, very high grip.

“Whatever resurfacing they've done on this Turn 1, Turn 2, it is not the same quality. So they need to go back and analyse what difference there is from the 2016 tarmac to the one laid down a few months ago.”

Audi driver Gabriel Bortoleto called it “very bad, if I'm honest”, while Valtteri Bottas said: “they did some grinding work last night, but they didn't seem to do much.

“It’s still there. It's quite easy to lock up. I had a big lock-up today. And [Turn] 13 is quite bumpy as well, so I think the track has got the feedback. The last resurface was 10 years ago.”

The Turn 1 bump

There are particular fears over a sizeable bump at Turn 1 which could add an extra dimension of chaos for the first lap.

That Turn 1 bump appears to be the result of the transition between the old and new surface not being completely flat - and there has been visible repair work completed at the corner ahead of the weekend.

Haas driver Ollie Bearman said: “They've resurfaced it really, really badly to be honest and we're all in agreement that they've done a really poor job.

“I think we're better off leaving it as it was because before it was much better. And now we have this huge bump in Turn 1, which could be interesting tomorrow, and also through Turn 13.

“It's super strange. And then the track is also breaking up a lot. So the grip is poor. It's weird.”