CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Circuit de Barcelona-Catalunya during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Andy Hone / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Max Verstappen, Red Bull Racing RB15 with aero sensors during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Valtteri Bottas, Mercedes-AMG F1 W10 EQ Power+ during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Joe Portlock / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Nico Hulkenberg, Renault Sport F1 Team R.S. 19 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Joe Portlock / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Circuit de Barcelona-Catalunya during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain.
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Scuderia Toro Rosso STR14 nose and front wing with sensors during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 19: Max Verstappen, Red Bull Racing RB15, spins into the gravel during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 19, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Pietro Fittipaldi, Haas VF-19 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Joe Portlock / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Sebastian Vettel, Ferrari SF90 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Nico Hulkenberg, Renault Sport F1 Team R.S. 19 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Zak Mauger / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Kimi Raikkonen, Alfa Romeo Racing C38 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Sergio Perez, SportPesa Racing Point F1 Team RP19 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Glenn Dunbar / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Sebastian Vettel, Ferrari SF90 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Mercedes-AMG F1 W10 EQ Power+ front wing detail during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Mercedes-AMG F1 W10 EQ Power+ nose and front wing during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Max Verstappen, Red Bull Racing RB15 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Zak Mauger / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Valtteri Bottas, Mercedes-AMG F1 W10 EQ Power+ and Pietro Fittipaldi, Haas VF-19 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Circuit de Barcelona-Catalunya during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Daniil Kvyat, Scuderia Toro Rosso STR14 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Carlos Sainz Jr, McLaren MCL34 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Zak Mauger / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Pirelli tyres during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Carl Bingham / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Carlos Sainz Jr, McLaren MCL34 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Andy Hone / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Alex Albon, Scuderia Toro Rosso during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Carl Bingham / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: George Russell, Williams FW42 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Glenn Dunbar / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Sergio Perez, SportPesa Racing Point F1 Team RP19 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: George Russell, Williams FW42 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Sebastian Vettel, Ferrari SF90 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Carl Bingham / LAT Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: The car of Romain Grosjean, Haas F1 Team VF-19 is recovered to the pits during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Daniel Ricciardo, Renault F1 Team R.S. 19 locks up during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Carlos Sainz Jr, McLaren MCL34 pit stop during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
CIRCUIT DE BARCELONA-CATALUNYA, SPAIN - FEBRUARY 20: Daniel Ricciardo, Renault F1 Team R.S. 19 during the Barcelona February testing at Circuit de Barcelona-Catalunya on February 20, 2019 in Circuit de Barcelona-Catalunya, Spain. (Photo by Mark Sutton / Sutton Images)
The running is relentless as pre-season F1 testing continues at the Circuit de Barcelona-Catalunya. Check out Wednesday's images in the gallery above.
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