Title leader Kimi Antonelli topped the times in the second practice session at the Spanish Grand Prix in Madrid.
He beat Charles Leclerc in the Ferrari to the line by 0.113 seconds, with Lewis Hamilton in third.
Re-live Friday's practice sessions below.
- Ferrari's Lewis Hamilton and Charles Leclerc held face-to-face talks after Monza woes: 'It's healthy'
- Spanish Grand Prix: Everything you need to know about F1's brand-new Madring
- Spanish Grand Prix: George Russell tops first session around F1's brand-new track in Madrid
The Madring is a hybrid between a street circuit and a purpose-built track, using a mixture of public roads and private land around the IFEMA Madrid exhibition centre.
The circuit is 5.416km long and features 22 corners. Sunday's race will take place over 57 laps.
Formula 1 is returning to Madrid for the first time since 1981, when the Spanish Grand Prix was held at Jarama, around 30 kilometres north of the city.
Mercedes' George Russell said ahead of the weekend: "I would put it, arguably, as the most risky circuit of the whole calendar, because you have real high-speed corners, sort of Jeddah-esque. The walls are very close. There's no margin for error.
"But then, you have other corners that are quite like Baku, where you're coming from a high speed into a slow braking zone. You're braking and turning at the same time.
"So, locking tyres is going to be easy. If you're not coping, you'll be straight in the wall.
"I think it's going to be really challenging for us as drivers. The race is going to be challenging to overtake. So, on the whole, it's not an easy one."
Alpine's Pierre Gasly added: "I must say it's exciting, but at the same time I think it's going to be quite a disruptive weekend, how easy it will be to have a crash."