F1 HIGHLIGHTS: Watch all the action from the first day of pre-season testing Week 2

Pre-season testing got back underway in Barcelona on Wednesday as the cars were back out on track following the first three days of running last week.

After spending the last five days analysing all the data collected from last week's test, today the teams got the chance to send their 2020 challengers back out on the circuit as they bid to learn as much as possible about their new machines before testing finishes on Friday.

Perhaps surprisingly, it was Alfa Romeo's Robert Kubica who topped the timesheets, finishing ahead of Max Verstappen in the Red Bull and Racing Point's Sergio Perez.

But it wasn't all plain sailing for Verstappen, who had a spin late on in the day which brought out the red flags and ended the day's running.

Ferrari's Sebastian Vettel had his own spin in the morning, which also forced the officials to halt the session. Check out the video above for all the highlights from the day's action.

Testing report: Flying Kubica finishes top on Day 1, as Vettel and Verstappen spin