The team principals of Haas and AlphaTauri have given their views on claims their rival Racing Point's new RP20 is a clone of last year's Mercedes.
Charles Leclerc says Ferrari were less concerned with their car's performance at the start of testing today than they were a year ago.
Max Verstappen said his new Red Bull felt "fast everywhere" after the first day of testing at the Circuit de Catalunya.
Carlos Sainz Jnr praised his new McLaren but is concerned about the degree of co-operation between their midfield rivals and top teams like Mercedes and Red Bull.
With testing cut from eight days to six, drivers can ill-afford a crash - but they say that doesn't mean they're going to back off.
The two Mercedes drivers occupied the top spots on the timing sheets at the end of the first day of pre-season testing and covered more laps than any other team.
Take a closer look at the new Formula 1 cars of 2020 with this new selection of pictures from the first day of testing at the Circuit de Catalunya
George Russell says his new Williams already feels "much better" to drive than last year's car following his first run in testing today.
Esteban Ocon says he feels more grip than ever after his first test in Renault's new F1 car, and predicts lap times will tumble in 2020.
Formula 1 is trying to convince the world it's serious about sustainability. But that clashes with the reality of where some of its money comes from.
Valtteri Bottas and Sergio Perez were separated by just six hundredths of a second as the first four hours of pre-season testing came to an end at the Circuit de Catalunya.
Ferrari is continuing to run the logos of Mission Winnow on its car despite an Italian consumer rights group threatening legal action over the brand last week.
The new Racing Point RP20 has appeared for the first time in pre-season testing at Circuit de Catalunya.
Pictures from the first day of testing for the 2020 F1 season at the Circuit de Catalunya. This gallery will be updated throughout the day.
Aston Martin will not run its Valkyrie hypercar in the new World Endurance Championship season which begins later this year.
The new Renault RS20 has hit the track for the first time in pre-season testing featuring a special livery and a strikingly slim nose.
Sebastian Vettel will not test for Ferrari today due to illness, the team have confirmed. Team mate Charles Leclerc will take his place in the SF1000.
Join us to follow day one of testing for the 2020 F1 season on RaceFans Live.
Alfa Romeo has presented its new car for the 2020 F1 season in the livery it will race in.
Haas has presented its new car for the 2020 F1 season at the Circuit de Catalunya.
In the round-up: Norris became less "shy" about car feedback during first season • NASCAR's Newman "awake" after horror crash • Vietnam GP "will not be postponed"