Verstappen moves into second, 0.2s down on Piastri.
Fourth for Leclerc, 0.4s off Piastri. Hamilton slots into seventh, 0.6s down.
A 1m12.551s for Piastri to go 0.2s ahead of teammate Norris.
A 1m12.799s for Russell, 0.5s ahead of Antonelli.
Lawson sets a 1m13.482s to go fastest. Still waiting to see what the big hitters can do.
Stroll sets a 1m13.699s to go fastest ahead of Albon, Colapinto and Ocon.
Qualifying in Barcelona is underway.
He tells Sky: "Based on what we saw in FP3, McLaren has such an advantage here. So, it would be a battle for the second row, but as the year has shown you never know."
Qualifying in Barcelona kicks off at 3pm UK time - so just over 20 minutes.
It's hard to look past McLaren heading into qualifying following their dominant run in practice. Behind them, it's hard to predict.

Piastri, Norris, Leclerc, Russell, Verstappen, Hadjar, Antonelli, Alonso, Hamilton and Lawson.
A dominant session for McLaren, Piastri 0.5s ahead of Norris. Leclerc 0.7s off in third.
Russell improves and goes fourth-fastest, 0.7s off Piastri.
Piastri, Norris, Leclerc, Verstappen, Hadjar, Russell, Alonso, Bortoleto, Hulkenberg and Antonelli.
Piastri sets a 1m12.387s, 0.5s ahead of Norris. Leclerc goes third, 0.7s off.
He goes third-fastest in the Aston, less than tenth off Verstappen.
No harm done as he takes to the run-off at Turn 9.
Verstappen goes fastest now with a 1m13.375s, 0.021s ahead of Russell.
Russell, Antonelli, Norris, Leclerc, Hamilton, Alonso, Verstappen, Sainz, Albon and Hadjar.
A snap of oversteer and a wheel in the gravel for Lawson! đŽâđ¨#F1#SpanishGPpic.twitter.com/xOrqkNSYZ0
â Formula 1 (@F1) May 31, 2025
Antonelli makes it a Mercedes 1-2, 0.4s off Russell. Both drivers on the softs.
Russell, Norris, Leclerc, Hamilton, Sainz, Verstappen, Alonso, Albon, Hadjar and Stroll.
Russell sets a 1m13.396s on the softs as he takes to the top of the timesheets.
He goes second in the Ferrari, a tenth down on Leclerc. Hamilton's running on the mediums.
A 1m13.941s for Leclerc to put him top of the pile. He's also on the softs, like Sainz.