Sebastian Vettel (GER) Ferrari walks the track at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Jerry Andre/Sutton Images
Williams FW41 bodywork at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Sergey Sirotkin (RUS) Williams walks the track at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Jerry Andre/Sutton Images
Pierre Gasly (FRA) Scuderia Toro Rosso walks the track at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Jerry Andre/Sutton Images
Valtteri Bottas (FIN) Mercedes-AMG F1 at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Max Verstappen (NED) Red Bull Racing talks with the media at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © James Gasperotti/Sutton Images
Marcus Ericsson (SWE) Alfa Romeo Sauber F1 Team with Johnny Herbert (GBR) Sky TV at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Johnny Herbert (GBR) Sky TV on a skateboard at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Pierre Gasly (FRA) Scuderia Toro Rosso takes a photo on the track walk at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Jerry Andre/Sutton Images
Ferrari garage at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Mercedes-AMG F1 W09 EQ Power+ is worked on in the garage at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Mercedes-AMG F1 W09 EQ Power+ nose detail at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Brendon Hartley (NZL) Scuderia Toro Rosso walks the track at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Jerry Andre/Sutton Images
Sebastian Vettel (GER) Ferrari walks the track at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Jerry Andre/Sutton Images
Brendon Hartley (NZL) Scuderia Toro Rosso at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Mercedes AMG F1 garage at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Marshals at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © James Gasperotti/Sutton Images
Traditional dancers at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Flags at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Pirelli tyres at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Red Bull Racing RB14 is worked on in the garage at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Force India VJM11 nose and front wings at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Haas VF-18 nose and front wings at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Marcus Ericsson (SWE) Alfa Romeo Sauber F1 Team walks the track at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Jerry Andre/Sutton Images
Lance Stroll (CDN) Williams at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Sebastian Vettel (GER) Ferrari at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Fernando Alonso (ESP) McLaren at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Charles Leclerc (MON) Alfa Romeo Sauber F1 Team at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
The car of Valtteri Bottas (FIN) Mercedes-AMG F1 W09 EQ Power+ in the garage at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Fans in pit lane at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Esteban Ocon (FRA) Force India F1 at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © James Gasperotti/Sutton Images
Kevin Magnussen (DEN) Haas F1 at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © James Gasperotti/Sutton Images
Daniel Ricciardo (AUS) Red Bull Racing in the Press Conference at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Daniel Ricciardo (AUS) Red Bull Racing and Kevin Magnussen (DEN) Haas F1 at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Max Verstappen (NED) Red Bull Racing at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Jerry Andre/Sutton Images
Lewis Hamilton (GBR) Mercedes-AMG F1 at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Jerry Andre/Sutton Images
Daniel Ricciardo (AUS) Red Bull Racing and Paul di Resta (GBR) Sky TV at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Ferrari SF-71H in the garage at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
McLaren MCL33 nose and front wing at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Mark Sutton/Sutton Images
Fans in pit lane at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © James Gasperotti/Sutton Images
George Russell (GBR) at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Fans in pit lane at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Esteban Ocon (FRA) Force India VJM11 at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images
Aerial view from 360 Bar Hilton at Formula One World Championship, Rd4, Azerbaijan Grand Prix, Preparations, Baku City Circuit, Baku, Azerbaijan, Thursday 26 April 2018. © Simon Galloway/Sutton Images