Friday in Spain is the teams' last chance to hone and develop their cars ahead of the season-opening Grand Prix in Australia on March 25...

Fernando Alonso (ESP) McLaren MCL33 with aero paint at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Kimi Raikkonen (FIN) Ferrari SF-71H at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Esteban Ocon (FRA) Force India VJM11 at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Jerry Andre/Sutton Images

Fans at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Lewis Hamilton (GBR) Mercedes-AMG F1 W09 EQ Power+ with aero sensors at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Jerry Andre/Sutton Images

Jack Aitken (GBR) Renault Sport F1 Team Third and Reserve Driver at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Daniel Ricciardo (AUS) Red Bull Racing RB14 at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Jerry Andre/Sutton Images

Brendon Hartley (NZL) Scuderia Toro Rosso STR13 at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Jerry Andre/Sutton Images

Romain Grosjean (FRA) Haas VF-18 at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Jerry Andre/Sutton Images

Sergey Sirotkin (RUS) Williams FW41 at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Jerry Andre/Sutton Images

Carlos Sainz jr (ESP) Renault Sport F1 Team RS18 with aero sensors at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Jerry Andre/Sutton Images

Kimi Raikkonen (FIN) Ferrari SF-71H at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Jerry Andre/Sutton Images

Kimi Raikkonen (FIN) Ferrari SF-71H at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Jerry Andre/Sutton Images

Charles Leclerc (MON) Alfa Romeo Sauber C37 crashes at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Stefano Arcari/Sutton Images

Charles Leclerc (MON) Alfa Romeo Sauber F1 Team walks in after crashing at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Stefano Arcari/Sutton Images

Lewis Hamilton (GBR) Mercedes-AMG F1 W09 EQ Power+ at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Sergey Sirotkin (RUS) Williams FW41 at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Jerry Andre/Sutton Images

Robert Kubica (POL) Williams talks with the media at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Romain Grosjean (FRA) Haas VF-18 at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Kimi Raikkonen (FIN) Ferrari SF-71H at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Charles Leclerc (MON) Alfa Romeo Sauber C37 at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Brendon Hartley (NZL) Scuderia Toro Rosso STR13 and Kimi Raikkonen (FIN) Ferrari SF-71H at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Maurizio Arrivabene (ITA) Ferrari Team Principal at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Fernando Alonso (ESP) McLaren MCL33 at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Kimi Raikkonen (FIN) Ferrari SF-71H at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images

Carlos Sainz jr (ESP) Renault Sport F1 Team RS18 at Formula One Testing, Day Four, Barcelona, Spain, 9 March 2018. © Mark Sutton/Sutton Images
Next Up
Related Articles
Newly-discovered species of wasp named after Piastri
Check out McLaren’s special Monaco livery for 1000th GP
Title-focussed Vowles has ‘zero doubt’ on keeping Sainz and Albon
BettingThe biggest F1 underdogs worth backing in Monaco
Why Bearman is taking ‘belief’ from Antonelli vs Russell battle
Listen to F1 Nation’s Monaco GP preview