Writing in his regular Sky Sports column, Martin Brundle has suggested that the Miami Grand Prix weekend might actually concern Mercedes more than any other so far this season.

The Silver Arrows recorded a P5 and P6 at the weekend as George Russell made a long stint work for him, with the help of a Safety Car, whilst Lewis Hamilton finished a spot behind him.

Good points, then, and it would be fair to suggest Mercedes are in with a shout of being the third-best team on the grid at the moment - though they obviously want more.

Brundle, though, has suggested that the drop-off in performance from Friday practice to qualifying and then the race, and the fact Mercedes couldn't really understand it, may well concern them more than anything else has so far this year:

"Mercedes were once again the third-best team but in many ways I think it was their most concerning weekend given that George Russell was fastest on Friday and struggled for pace thereafter and the team simply didn't know why.

"They've talked about 'diva' cars before but this one is just a plain mystery with a knife-edge window of set-up. There's a good car in there somewhere, it's just so well hidden."

MIAMI, FLORIDA - MAY 07: Lewis Hamilton of Great Britain driving the (44) Mercedes AMG Petronas F1 Team W13 on track during qualifying ahead of the F1 Grand Prix of Miami at the Miami International Autodrome on May 07, 2022 in Miami, Florida. (Photo by Chris Graythen/Getty Images)

It's a good point that Brundle makes.

Mercedes clearly have a quick car when they find the sweet spot for it but it's proving so elusive to find that they are not able to regularly get it in the window of optimal performance.

They're still working on that, then, but you have to imagine they will crack it eventually.