Mercedes boss Toto Wolff says his squad has been busy resolving its power unit reliability ahead of the 2020 F1 opener but can't be certain it has fixed the issue. read more »

Ferrari has relinquished its advantage in the power stakes in order to enhance reliability, according to its team boss, in parallel to its decision to chase greater downforce.... read more »

Racing Point F1 technical director Andrew Green says the team has no concerns over the engine-related reliability issues Mercedes suffered during pre-season testing. read more »

Ferrari admits that its 2020 engine is "not as strong", and that it must now overcome a straightline speed deficit to its Formula 1 rivals after working to improve... read more »

Ferrari team principal Mattia Binotto admits that the team's quest for a more reliable car in 2020 has compromised the power available on their latest championship challenger. read more »

Other than a dislodged pipe on Pierre Gasly's car and a "precautionary change" at Red Bull, there were no issues with Honda's power units in testing, a far... read more »

Lewis Hamilton knows Mercedes face a difficult task in trying to squeeze as much power as possible out of their engine while maintaining reliability, but has faith in his... read more »

Lewis Hamilton has faith that his Mercedes Formula 1 team is doing all it can to get on top of its engine reliability problems before the Australian Grand Prix read more »

Mercedes will head to the Formula 1 season-opener in Australia as the favourite after leading pre-season testing - although question marks remain over its engine reliability read more »

Christian Horner reckons Honda’s reliability is “very encouraging” after his Red Bull team and sister outfit AlphaTauri used just one power unit apiece through the duration of... read more »

Williams' George Russell says the team had a "small issue" with their Mercedes PU on Friday as the reliability issues in testing continued. read more »

Though Lewis Hamilton has expressed concern at the reliability of the W11, Mercedes once again leaves Barcelona with the highest mileage. read more »

Though he completed the most laps in pre-season testing, Lewis Hamilton has admitted concern at the W11's reliability. read more »

Lewis Hamilton says there is some concern over Mercedes’ reliability after he was forced to stop on Thursday with an engine issue, just one of a number of breakdowns for... read more »

Lewis Hamilton has declared Barcelona being a "good winter test" but has concerns over Mercedes' reliability heading into the season opener. read more »

Lewis Hamilton says Mercedes' reliability issues throughout pre-season testing are "a concern" heading into the 2020 F1 season. read more »

Lewis Hamilton says Mercedes is battling "plenty of problems", admitting the engine reliability dramas that have affected the Formula 1 team during pre-season testing... read more »

The timesheet may suggest differently, but Mercedes has once again demonstrated their impressive pace today despite their reliability issues that have hindered them on the... read more »

Lewis Hamilton completed only 14-laps of running on the penultimate day of pre-season testing as reliability problems continue with the Mercedes power unit - Williams also... read more »

Sebastian Vettel remained fastest for Ferrari at the end of the penultimate day of 2020 pre-season Formula 1 testing, while Mercedes' Lewis Hamilton suffered a reliability... read more »

Sebastian Vettel ends the penultimate day of pre-season testing at the top of the timesheets as Mercedes suffer reliability problems resulting in considerably limited running. read more »

Williams have suffered more confirmed reliability problems in pre-season testing than any other team, and deputy team principal Claire Williams says the problems have come... read more »

Robert Kubica tops the timesheets on the opening day of the final Formula 1 pre-season test in Barcelona as numerous teams hit trouble. read more »

Red Bull and Honda have targeted getting through the 2020 Formula 1 season without any unprescribed engine changes this season, amid growing optimism about the reliability of... read more »

Tom McCullough was pleased with the work put in by Racing Point during the first pre-season test in Spain, with a lot of encouragement coming from the speed and reliability of... read more »