A selection of the best images from this week's two-day, post-race test session at the Bahrain International Circuit in Sakhir...
Day Two (Wednesday)

Gary Paffett (GBR) Williams FW40 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Esteban Ocon (FRA) Force India VJM10 with aero sensor at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Sebastian Vettel (GER) Ferrari at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid with aero sensors at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid front wing change at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Pierre Gasly (FRA) Red Bull Racing RB13 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Gary Paffett (GBR) Williams FW40 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Esteban Ocon (FRA) Force India VJM10 rear at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Daniil Kvyat (RUS) Scuderia Toro Rosso STR12 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Kevin Magnussen (DEN) Haas VF-17 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Gary Paffett (GBR) Williams FW40 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Stoffel Vandoorne (BEL) McLaren MCL32 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Sebastian Vettel (GER) Ferrari SF70-H at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Sebastian Vettel (GER) Ferrari at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Stoffel Vandoorne (BEL) McLaren MCL32 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Esteban Ocon (FRA) Force India VJM10 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Pascal Wehrlein (GER) Sauber C36 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Sergey Sirotkin (RUS) Renault Sport F1 Team RS17 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Pascal Wehrlein (GER) Sauber C36 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

The car of Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid is recovered after stopping on track at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Gary Paffett (GBR) Williams FW40 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Carlos Sainz jr (ESP) Scuderia Toro Rosso STR12 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Sergio Perez (MEX) Force India VJM10 selfie at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Ferrari freight in the Paddock at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Sebastian Vettel (GER) Ferrari SF70-H and Carlos Sainz jr (ESP) Scuderia Toro Rosso STR12 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images
Day One (Tuesday)

Sebastian Vettel (GER) Ferrari SF70-H at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Daniel Ricciardo (AUS) Red Bull Racing RB13 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Nico Hulkenberg (GER) Renault Sport F1 Team RS17 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Sebastian Vettel (GER) Ferrari at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Lance Stroll (CDN) Williams FW40 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

The car of Lewis Hamilton (GBR) Mercedes-Benz F1 W08 Hybrid is recovered to the pits at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Romain Grosjean (FRA) Haas F1 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Marcus Ericsson (SWE) Sauber C36 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Sean Gelael (INA) Scuderia Toro Rosso STR12 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Felipe Massa (BRA) Williams FW40 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Alfonso Celis jr (MEX) Force India VJM10 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Oliver Turvey (GBR) McLaren MCL32 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Antonio Giovinazzi (ITA) Ferrari SF70-H at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

The car of Daniel Ricciardo (AUS) Red Bull Racing RB13 is recovered to the pits at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Romain Grosjean (FRA) Haas VF-17 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Sahir Tower at sunset at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Nico Hulkenberg (GER) Renault Sport F1 Team RS17 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Lewis Hamilton (GBR) Mercedes-Benz F1 W08 Hybrid at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Antonio Giovinazzi (ITA) Ferrari at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Alfonso Celis jr (MEX) Force India VJM10 with aero sensor at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Oliver Turvey (GBR) McLaren MCL32 at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Jo Bauer (SUI) FIA Technical Delegate in the Ferrari garage at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Lewis Hamilton (GBR) Mercedes-Benz F1 W08 Hybrid with aero sensors at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Daniel Ricciardo (AUS) Red Bull Racing RB13 with aero sensors at Formula One Testing, Day One, Bahrain International Circuit, Sakhir, Bahrain, Tuesday 18 April 2017. © Sutton Motorsport Images

Sergey Sirotkin (RUS) Renault Sport F1 Team RS17 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

Stoffel Vandoorne (BEL) McLaren MCL32 at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images

The car of Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid is recovered after stopping on track at Formula One Testing, Day Two, Bahrain International Circuit, Sakhir, Bahrain, Wednesday 19 April 2017. © Sutton Motorsport Images
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