A selection of the best images from the opening test of 2017 at Spain's Circuit de Barcelona-Catalunya...
Day 4

The track is watered at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Pirelli engineers at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

The track is watered at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Max Verstappen (NED) Red Bull Racing RB13 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Stoffel Vandoorne (BEL) McLaren MCL32 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Stoffel Vandoorne (BEL) McLaren MCL32 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Antonio Giovinazzi (ITA) Sauber C36 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Max Verstappen (NED) Red Bull Racing RB13 and green flag at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Daniil Kvyat (RUS) Scuderia Toro Rosso STR12 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Pirelli wet weather tyre at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Valtteri Bottas (FIN) Mercedes AMG F1 talks with the Williams mechanics at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Marshal with yellow flag for Max Verstappen (NED) Red Bull Racing RB13 at the end of pit lane at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Nico Hulkenberg (GER) Renault Sport F1 Team RS17 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Kimi Raikkonen (FIN) Ferrari SF70-H at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Romain Grosjean (FRA) Haas VF-17 with Pirelli wet weather tyre at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Nico Hulkenberg (GER) Renault Sport F1 Team RS17 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Antonio Giovinazzi (ITA) Sauber at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Stoffel Vandoorne (BEL) McLaren MCL32 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Max Verstappen (NED) Red Bull Racing RB13 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Antonio Giovinazzi (ITA) Sauber C36 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Sergio Perez (MEX) Force India VJM10 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Andy Shovlin (GBR), Mercedes AMG F1 Chief Engineer, Ron Meadows (GBR) Mercedes AMG F1 Team Manager and Jock Clear (GBR) Ferrari Chief Engineer at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Max Verstappen (NED) Red Bull Racing RB13 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Red Bull Racing mechanic washes Pirelli tyres and wheels at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

McLaren MCL32 front suspension and wheel hub detail at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Romain Grosjean (FRA) Haas VF-17 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Nico Hulkenberg (GER) Renault Sport F1 Team RS17 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Nico Hulkenberg (GER) Renault Sport F1 Team RS17 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Nico Hulkenberg (GER) Renault Sport F1 Team RS17 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Max Verstappen (NED) Red Bull Racing RB13 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Max Verstappen (NED) Red Bull Racing RB13 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Sergio Perez (MEX) Force India VJM10 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Kimi Raikkonen (FIN) Ferrari SF70-H at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Kimi Raikkonen (FIN) Ferrari SF70-H at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Jolyon Palmer (GBR) Renault Sport F1 Team RS17 rear wing at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Romain Grosjean (FRA) Haas VF-17 locks up at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Romain Grosjean (FRA) Haas VF-17 locks up at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Romain Grosjean (FRA) Haas VF-17 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Stoffel Vandoorne (BEL) McLaren MCL32 at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images

Carlos Sainz jr (ESP) Scuderia Toro Rosso at Formula One Testing, Day Four, Barcelona, Spain, 2 March 2017. © Sutton Images
Day 3

Daniil Kvyat (RUS) Scuderia Toro Rosso STR12 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Nico Rosberg (GER) Mercedes-Benz Ambassador at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Mercedes-Benz F1 W08 Hybrid rear detail at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Mercedes-Benz F1 W08 Hybrid rear wing detail at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

John Booth (GBR) Scuderia Toro Rosso at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Romain Grosjean (FRA) Haas VF-17 pit stop at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Jolyon Palmer (GBR) Renault Sport F1 Team RS17 spins into the gravel at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Sebastian Vettel (GER) Ferrari SF70-H at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Nick Chester (GBR) Renault Sport F1 Team Technical Director and Jolyon Palmer (GBR) Renault Sport F1 Team at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Nico Rosberg (GER) Mercedes-Benz Ambassador at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Marcus Ericsson (SWE) Sauber C36 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Alfonso Celis jr (MEX) Force India VJM10 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Daniel Ricciardo (AUS) Red Bull Racing RB13 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Alfonso Celis jr (MEX) Force India VJM10 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Daniil Kvyat (RUS) Scuderia Toro Rosso STR12 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Mercedes-Benz F1 W08 Hybrid rear suspension and rear wing detail at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Romain Grosjean (FRA) Haas VF-17 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

McLaren MCL32 front wing aero detail at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Sebastian Vettel (GER) Ferrari SF70-H at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Daniel Ricciardo (AUS) Red Bull Racing RB13 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Nico Rosberg (GER) Mercedes-Benz Ambassador talks with the media at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Fernando Alonso (ESP) McLaren MCL32 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Dr Helmut Marko (AUT) Red Bull Motorsport Consultant at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Sebastian Vettel (GER) Ferrari SF70-H, Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid and marshal with yellow flag at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Lance Stroll (CDN) Williams FW40 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Jolyon Palmer (GBR) Renault Sport F1 Team RS17 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Lance Stroll (CDN) Williams FW40 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Romain Grosjean (FRA) Haas VF-17 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Felipe Massa (BRA) Williams at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Sauber C36 rear wing detail at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Jolyon Palmer (GBR) Renault Sport F1 Team RS17 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Max Verstappen (NED) Red Bull Racing at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Daniel Ricciardo (AUS) Red Bull Racing RB13 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Marcus Ericsson (SWE) Sauber C36 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Lewis Hamilton (GBR) Mercedes-Benz F1 W08 Hybrid pit stop at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Marcus Ericsson (SWE) Sauber C36 and Lewis Hamilton (GBR) Mercedes-Benz F1 W08 Hybrid at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Franz Tost (AUT) Scuderia Toro Rosso Team Principal and Carlos Sainz (ESP) at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Fernando Alonso (ESP) McLaren MCL32 steering wheel detail at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Fernando Alonso (ESP) McLaren MCL32 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Daniel Ricciardo (AUS) Red Bull Racing RB13 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Jos Verstappen (NDL), Max Verstappen (NED) Red Bull Racing, Christian Horner (GBR) Red Bull Racing Team Principal and Gianpiero Lambiase (ITA) Red Bull Racing Race Engineer at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Sebastian Vettel (GER) Ferrari SF70-H at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Marcus Ericsson (SWE) Sauber C36 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Sebastian Vettel (GER) Ferrari SF70-H at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Fernando Alonso (ESP) McLaren MCL32 at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images

Sebastian Vettel (GER) Ferrari talks with the media at Formula One Testing, Day Three, Barcelona, Spain, 1 March 2017. © Sutton Images
Day 2

Kimi Raikkonen (FIN) Ferrari SF70-H with aero sensors at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Max Verstappen (NED) Red Bull Racing RB13 with aero sensors at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Lance Stroll (CDN) Williams FW40 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Lewis Hamilton (GBR) Mercedes-Benz F1 W08 Hybrid with aero sensors at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Stoffel Vandoorne (BEL) McLaren MCL32 with aero sensor at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Antonio Giovinazzi (ITA) Sauber C36 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Daniil Kvyat (RUS) Scuderia Toro Rosso at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Kevin Magnussen (DEN) Haas F1 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Antonio Giovinazzi (ITA) Sauber C36 spins at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Lance Stroll (CDN) Williams FW40 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Kevin Magnussen (DEN) Haas VF-17 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Mercedes-Benz F1 W08 Hybrid rear wing at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Antonio Giovinazzi (ITA) Sauber C36 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Stoffel Vandoorne (BEL) McLaren MCL32 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Daniil Kvyat (RUS) Scuderia Toro Rosso STR12 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Lance Stroll (CDN) Williams FW40 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Daniil Kvyat (RUS) Scuderia Toro Rosso STR12 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Red Bull Racing RB13 rear wing detail at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Kimi Raikkonen (FIN) Ferrari SF70-H at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Kimi Raikkonen (FIN) Ferrari SF70-H passes Daniil Kvyat (RUS) Scuderia Toro Rosso STR12 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Kevin Magnussen (DEN) Haas VF-17 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Esteban Ocon (FRA) Force India VJM10 stops on track at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Daniil Kvyat (RUS) Scuderia Toro Rosso STR12 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Jolyon Palmer (GBR) Renault Sport F1 Team RS17 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

The car of Esteban Ocon (FRA) Force India VJM10 is recovered to the pits at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Red Bull Racing RB13 nose and front wing at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Stoffel Vandoorne (BEL) McLaren MCL32 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Franz Tost (AUT) Scuderia Toro Rosso Team Principal at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Kevin Magnussen (DEN) Haas VF-17 rear at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Esteban Ocon (FRA) Force India VJM10 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Lance Stroll (CDN) Williams talks with the media at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Pirelli tyres Lance Stroll (CDN) Williams talks with the media at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Nico Hulkenberg (GER) Renault Sport F1 Team at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Tatiana Calderon (COL) Sauber Development Driver at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Alain Prost (FRA) Renault Sport F1 Team Special Advisor at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Daniil Kvyat (RUS) Scuderia Toro Rosso STR12 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Max Verstappen (NED) Red Bull Racing RB13 at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid rear wing detail at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images

Low light action at Formula One Testing, Day Two, Barcelona, Spain, 28 February 2017. © Sutton Images
Day 1

Kevin Magnussen (DEN) Haas F1 and Romain Grosjean (FRA) Haas F1 unveil the new Haas VF-17 at Haas VF-17 Launch, Barcelona, Spain, 27 February 2017. © Sutton Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Marcus Ericsson (SWE) Sauber C36 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Daniil Kvyat (RUS) Scuderia Toro Rosso STR12 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Sebastian Vettel (GER) Ferrari SF70-H at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Nico Hulkenberg (GER) Renault Sport F1 Team RS17 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Daniel Ricciardo (AUS) Red Bull Racing RB13 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Maurizio Arrivabene (ITA) Ferrari Team Principal at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Mercedes-Benz F1 W08 Hybrid sidepod and camera detail at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Sergio Perez (MEX) Force India VJM10 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Marcus Ericsson (SWE) Sauber at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Williams FW40 rear wing detail at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Max Verstappen (NED) Red Bull Racing and Jos Verstappen (NDL) at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

The car of Daniel Ricciardo (AUS) Red Bull Racing RB13 is recovered to the pits at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Marcus Ericsson (SWE) Sauber C36 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Haas VF-17 barge board and aero detail at Haas VF-17 Launch, Barcelona, Spain, 27 February 2017. © Sutton Images

Sebastian Vettel (GER) Ferrari SF70-H at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Haas VF-17 engine cover fin detail at Haas VF-17 Launch, Barcelona, Spain, 27 February 2017. © Sutton Images

Fernando Alonso (ESP) McLaren MCL32 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Felipe Massa (BRA) Williams FW40 engine cover fin and rear wing at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Sergio Perez (MEX) Force India VJM10 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Kevin Magnussen (DEN) Haas VF-17 is pushed by mechanics in pit lane at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Pirelli tyres at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Guenther Steiner (ITA) Haas F1 Team Prinicipal at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Valtteri Bottas (FIN) Mercedes-Benz F1 W08 Hybrid and fans at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Felipe Massa (BRA) Williams FW40 rear at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Sebastian Vettel (GER) Ferrari SF70-H rear wing at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Kevin Magnussen (DEN) Haas VF-17 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Carlos Sainz jr (ESP) Scuderia Toro Rosso at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Sergio Perez (MEX) Force India at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Williams FW40 rear wing at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Nico Hulkenberg (GER) Renault Sport F1 Team RS17 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Carlos Sainz jr (ESP) Scuderia Toro Rosso STR12 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Marcus Ericsson (SWE) Sauber C36 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Antonio Giovinazzi (ITA) Sauber at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Sergio Perez (MEX) Force India VJM10 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Esteban Ocon (FRA) Force India F1 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Sergio Perez (MEX) Force India VJM10 with aero paint on nose and front wing at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Romain Grosjean (FRA) Haas F1 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Lewis Hamilton (GBR) Mercedes-Benz F1 W08 Hybrid at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Pirelli preparation area at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Mercedes-Benz F1 W08 Hybrid nose and front wing at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Fernando Alonso (ESP) McLaren MCL32 at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images

Nico Hulkenberg (GER) Renault Sport F1 Team RS17 and Sebastian Vettel (GER) Ferrari SF70-H at Formula One Testing, Day One, Barcelona, Spain, 27 February 2017. © Sutton Images
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