A selection of the best images from this week's two-day, post-race test session at the Circuit de Barcelona-Catalunya...
Day Two (Wednesday)
Charles Leclerc (MON) Alfa Romeo Sauber F1 Team at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Jerry Andre/Sutton Images
Charles Leclerc (MON) Alfa Romeo Sauber C37 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Jerry Andre/Sutton Images
Charles Leclerc (MON) Alfa Romeo Sauber C37 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Mark Sutton/Sutton Images
Lando Norris (GBR) McLaren MCL33 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Jerry Andre/Sutton Images
Sean Gelael (INA) Scuderia Toro Rosso STR13 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Mark Sutton/Sutton Images
Valtteri Bottas (FIN) Mercedes-AMG F1 W09 EQ Power+ with aero sensor on rear at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Mark Sutton/Sutton Images
Stoffel Vandoorne (BEL) McLaren MCL33 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Mark Sutton/Sutton Images
Nicholas Latifi (CDN) Force India VJM11 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Mark Sutton/Sutton Images
Jake Dennis (GBR) Red Bull Racing RB14 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Jerry Andre/Sutton Images
Valtteri Bottas (FIN) Mercedes-AMG F1 W09 EQ Power+ at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Jerry Andre/Sutton Images
Kevin Magnussen (DEN) Haas F1 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Jerry Andre/Sutton Images
Robert Kubica (POL) Williams FW41 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Jerry Andre/Sutton Images
Nicholas Latifi (CDN) Force India VJM11 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Mark Sutton/Sutton Images
Dirty wheel rim at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Mark Sutton/Sutton Images
Robert Kubica (POL) Williams FW41 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Jerry Andre/Sutton Images
Antonio Giovinazzi (ITA) Ferrari SF-71H at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Mark Sutton/Sutton Images
Valtteri Bottas (FIN) Mercedes-AMG F1 W09 EQ Power+ at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Mark Sutton/Sutton Images
Nikita Mazepin (RUS) Force India VJM11 at Formula One Testing, Day Two, Barcelona, Spain, Wednesday 16 May 2018. © Jerry Andre/Sutton Images
Day One (Tuesday)
Marshals waces the green flag at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Antonio Giovinazzi (ITA) Alfa Romeo Sauber C37 at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Lewis Hamilton (GBR) Mercedes-AMG F1 W09 EQ Power+ at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Lando Norris (GBR) McLaren MCL33 at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Sebastian Vettel (GER) Ferrari SF-71H at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Jerry Andre/Sutton Images
Carlos Sainz jr (ESP) Renault Sport F1 Team RS18 with aero sensor at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Lewis Hamilton (GBR) Mercedes-AMG F1 W09 EQ Power+ at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Jerry Andre/Sutton Images
Carlos Sainz jr (ESP) Renault Sport F1 Team RS18 with aero sensor at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Jerry Andre/Sutton Images
Max Verstappen (NED) Red Bull Racing RB14 at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Sebastian Vettel (GER) Ferrari at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Jerry Andre/Sutton Images
Antonio Giovinazzi (ITA) Alfa Romeo Sauber F1 Team at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Nicholas Latifi (CDN) Force India VJM11 at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Lewis Hamilton (GBR) Mercedes-AMG F1 W09 EQ Power+ with lights on rear wing at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Jerry Andre/Sutton Images
Romain Grosjean (FRA) Haas VF-18 at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Jerry Andre/Sutton Images
Sebastian Vettel (GER) Ferrari SF-71H at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Jerry Andre/Sutton Images
Lando Norris (GBR) McLaren MCL33 Lewis Hamilton (GBR) Mercedes-AMG F1 W09 EQ Power+ and at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Jerry Andre/Sutton Images
Max Verstappen (NED) Red Bull Racing RB14 at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Lewis Hamilton (GBR) Mercedes-AMG F1 W09 EQ Power+ at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Oliver Rowland (GBR) Williams FW41 at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Jerry Andre/Sutton Images
Nikita Mazepin (RUS) Force India VJM11 at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Jerry Andre/Sutton Images
Lewis Hamilton (GBR) Mercedes-AMG F1 W09 EQ Power+ at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Stoffel Vandoorne (BEL) McLaren MCL33 at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
Carlos Sainz jr (ESP) Renault Sport F1 Team at Formula One Testing, Day One, Barcelona, Spain, Tuesday 15 May 2018. © Mark Sutton/Sutton Images
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