Honda's F1 technical director Toyoharu Tanabe has insisted there has been no update to the performance of its power unit but ruled out the engines were being turned down... read more »

The Japanese manufacturer has helped Red Bull take wins in the last four grands prix, but it has been particularly strong since the French GP when Honda introduced its second... read more »

Christian Horner believes the 2021 title fight will be decided by reliability, the constraints of the budget cap and marginal gains. read more »

Sebastian Vettel's difficult start to life with Aston Martin continued at the Emilia Romagna GP with the four-time F1 world champion struggling for pace and reliability,... read more »

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 »