Teams conclude their two weeks of pre-season testing in Barcelona on Friday, after which everyone will head back to base before undertaking the long haul to Australia.
Ferrari's Sebastian Vettel became the fastest man ever to lap the Circuit de Catalunya on Thursday, firing off a warning shot to the Scuderia's front-running rivals, Mercedes and Red Bull.
The German put a massive 185 laps on the board yesterday, lapping in 1m17.182s, the marker which everyone will be watching today, including Kimi Raikkonen who takes over from Vettel at Ferrari.
With clear weather on the horizon it should be an exciting final session which will once again run uninterrupted from 9am to 6am CET.
As usual you can follow all the action LIVE from the outset. Just click here.
Line-ups - Week 2
| Tuesday - Mar 6 | Wednesday - Mar 7 | Thursday - Mar 8 | Friday - Mar 9 |
| Mercedes | |||
| Valtteri Bottas/ Lewis Hamilton | Lewis Hamilton/ Valtteri Bottas | Valtteri Bottas/ Lewis Hamilton | Lewis Hamilton/ Valtteri Bottas |
| Ferrari | |||
| Sebastian Vettel | Sebastian Vettel/ Kimi Raikkonen | Sebastian Vettel | Kimi Raikkonen |
| Red Bull | |||
| Max Verstappen | Daniel Ricciardo | Max Verstappen | Daniel Ricciardo |
| Force India | |||
| Sergio Perez | Esteban Ocon | Sergio Perez | Esteban Ocon |
| Williams | |||
| Sergey Sirotkin/ Lance Stroll | Lance Stroll/ Sergey Sirotkin | Robert Kubica/ Lance Stroll | Sergey Sirotkin/ Lance Stroll |
| Renault | |||
| Nico Hulkenberg/ Carlos Sainz | Carlos Sainz/ Nico Hulkenberg | Nico Hulkenberg/ Carlos Sainz | Carlos Sainz/ Nico Hulkenberg |
| Toro Rosso | |||
| Pierre Gasly | Brendon Hartley | Pierre Gasly | Brendon Hartley |
| Haas | |||
| Kevin Magnussen | Romain Grosjean | Kevin Magnussen | Romain Grosjean |
| McLaren | |||
| Stoffel Vandoorne | Fernando Alonso | Stoffel Vandoorne | Fernando Alonso |
| Sauber | |||
| Marcus Ericsson | Charles Leclerc | Marcus Ericsson | Charles Leclerc |
Gallery: The beautiful wives and girlfriends of F1 drivers
