Red Bull team principal Christian Horner has conceded that reliability problems could be an Achilles heel for the team this season. read more »

Two races into the 2021 championship and the Honda-powered cars may be showing improved pace, but they are down on reliability. read more »

Red Bull need consistent reliability as well as Sergio Perez to be on the pace if they are to challenge Mercedes for the Constructors' World Championship this year. read more »

Honda's upgraded F1 power unit for the 2021 season will be boosted by a new fuel developed to increase reliability and performance.  read more »

McLaren team principal Andreas Seidl has praised the smooth integration of the Mercedes' power unit into the MCL35M after a reliable pre-season test in Bahrain. read more »

Sebastian Vettel has refused to blame Mercedes for Aston Martin's reliability troubles during F1 pre-season testing in Bahrain. read more »

Mercedes endured a troubled weekend of testing in Bahrain as reliability dramas and difficulties for both its drivers in finding a good balance left it on the back foot.By the... read more »

The promising pace and reliability that Max Verstappen and Sergio Perez showed over the three days in Bahrain was in contrast to the difficulties that Mercedes duo Lewis... read more »

The four-time world champion's hopes of a solid start with his new squad in pre-season testing in Bahrain last weekend were dashed by reliability problems that limited his... read more »

Despite strong pace and reliability, though he admits to Bahrain being "the best" pre-season test, Max Verstappen refuses to get carried away. read more »

Sebastian Vettel is taking the positives from Formula 1 pre-season testing despite reliability gremlins impacting his mileage in Bahrain. read more »

James Key feels that the team has had another solid day of testing with the team managing to complete their varied program that they set out to do. read more »

Following their reliability issues on the opening day, Mercedes returned to the top of the timesheets with Valtteri Bottas setting the best lap tim with a 1m30.289, followed by... read more »

Valtteri Bottas says Mercedes will review its decision not to shakedown its new 2021 Formula 1 car after reliability issues curtailed its running on the opening day of... read more »

Early days, but Red Bull's RB16B has pace and reliability as Max Verstappen tops the timesheets and completes the most laps as testing gets underway. read more »

Mercedes endured a stuttering start to Formula 1 2021 as the world champions hit reliability issues in the opening session of pre-season testing, which was topped by... read more »

Mercedes do not have "any particular problems" with the reliability of their power unit, that's according to Toto Wolff. read more »

Mercedes has implemented modifications to its MGU-K after a spout of concerns relating to the component arose throughout the 2020 Formula 1 season. Pre-season testing last year... read more »

Mercedes has explained the changes it has made to its Formula 1 engine to address reliability concerns it had ahead of the new season read more »

AlphaTauri team principal Franz Tost has insisted his team must minimise retirements this year if it is to climb the constructors' table. read more »

Kimi Raikkonen has told Alfa Romeo that there cannot be any reliability problems in pre-season as they don't have time to lose. read more »

Lando Norris expects more power and better reliability in 2021 after McLaren switched from Renault to Mercedes-Benz power units. read more »

Max Verstappen has urged Red Bull and Honda to work on improving reliability if he and the team are to have any hope of challenging Mercedes for the Formula 1 titles this season. read more »

Andreas Seidl believes the key behind McLaren's successful 2020 season was the team's reliability record and the "sensational" racing from Lando Norris and... read more »

Honda has reiterated its ambition to sign off from Formula 1 with a world title after being boosted by the reliability that it demonstrated through the 2020 season. Honda won... read more »