Pre-season testing kicked off in Barcelona on Wednesday as all 10 teams arrived to put their 2020 challengers through their paces for the first time.
But who was quick? Who was on the back foot? Who was happy with their programme and who is already looking at how they can catch up at next week's second session?
To find out all that and much more, watch Paddock Pass as Will Buxton runs through each team's progress through the week – and you'll hear from the drivers to get their take on where they are in the pecking order after the first three days of testing.
READ MORE: 10 things we learned from the opening F1 pre-season test
TECH INSIGHT: Why Mercedes, Red Bull and Racing Point stole the show at week 1 of testing
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