Sebastian Vettel (GER) Ferrari walks the track with Riccardo Adami (ITA) Ferrari Race Engineer at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Lance Stroll (CDN) Williams at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Marcus Ericsson (SWE) Alfa Romeo Sauber F1 Team walks the track at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerrry Andre/Sutton Images
Sergio Perez (MEX) Force India F1 walks the track at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Ruth Buscombe (GBR) Alfa Romeo Sauber F1 Team Race Strategist at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Charles Leclerc (MON) Alfa Romeo Sauber F1 Team with Ruth Buscombe (GBR) Alfa Romeo Sauber F1 Team Race Strategist at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Charles Leclerc (MON) Alfa Romeo Sauber F1 Team and Xevi Pujolar (ESP) Alfa Romeo Sauber F1 Team Head of Track Engineering at F1 World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Mercedes AMG F1 mechanic at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Charles Leclerc (MON) Alfa Romeo Sauber F1 Team at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Lance Stroll (CDN) Williams walks the track at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
McLaren mechanic and Pirelli tyres at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Carlos Sainz jr (ESP) Renault Sport F1 Team walks the track at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Carlos Sainz jr (ESP) Renault Sport F1 Team walks the track at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Brendon Hartley (NZL) Scuderia Toro Rosso walks the track at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerrry Andre/Sutton Images
Sebastian Vettel (GER) Ferrari walks the track at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerrry Andre/Sutton Images
Ferrari SF-71H at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerrry Andre/Sutton Images
Ferrari SF-71H mirror detail at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Manuel Goria/Sutton Images
Pierre Gasly (FRA) Scuderia Toro Rosso walks the track at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Manuel Goria/Sutton Images
Cyril Abiteboul (FRA) Renault Sport F1 Managing Director in the garage at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Force India VJM11 nose and front wing at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Esteban Ocon (FRA) Force India VJM11 at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
Kevin Magnussen (DEN) Haas F1 walks the track at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Manuel Goria/Sutton Images
Fernando Alonso (ESP) McLaren at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerrry Andre/Sutton Images
Carlos Sainz jr (ESP) Renault Sport F1 Team walks the track at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Manuel Goria/Sutton Images
Fernando Alonso (ESP) McLaren and Carlos Sainz jr (ESP) Renault Sport F1 Team in the Press Conference at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Manuel Goria/Sutton Images
Perez (MEX) Force India, Alonso (ESP) McLaren, Sainz jr (ESP) Renault Sport F1 Team and Hartley (NZL) Scuderia Toro Rosso at F1 World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Manuel Goria/Sutton Images
Pirelli tyres at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Manuel Goria/Sutton Images
Nico Hulkenberg (GER) Renault Sport F1 Team fans selfie at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerry Andre/Sutton Images
Marcus Ericsson (SWE) Alfa Romeo Sauber F1 Team signs autographs for the fans at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerry Andre/Sutton Images
Lewis Hamilton (GBR) Mercedes-AMG F1 and Valtteri Bottas (FIN) Mercedes-AMG F1 on stage at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerry Andre/Sutton Images
Fernando Alonso (ESP) McLaren on stage at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerry Andre/Sutton Images
Sebastian Vettel (GER) Ferrari signs autographs for the fans at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerry Andre/Sutton Images
Daniel Ricciardo (AUS) Red Bull Racing signs autographs for the fans at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerry Andre/Sutton Images
Esteban Ocon (FRA) Force India F1 selfie at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Jerry Andre/Sutton Images
Esteban Ocon (FRA) Force India F1 at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
McLaren MCL33 nose and front wing detail at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images
McLaren MCL33 nose and front wing detail at Formula One World Championship, Rd5, Spanish Grand Prix, Preparations, Barcelona, Spain, Thursday 10 May 2018. © Mark Sutton/Sutton Images