The current world champions had to take 'countermeasures' to address the reliability issues they experienced in pre-season testing.

Following yesterday's collective statement by seven teams that do not use Ferrari engines around the FIA's investigation into Ferrari's 2019 F1 power unit, the FIA made a statement explaining why they could not reveal more details.

All teams except Ferrari and their customers Alfa Romeo and Haas have signed a statement on the FIA's conclusion of the investigation into Ferrari's power unit, in which they expressed their shock at the non-transparent and incomplete explanation of what actually happened last season.

The FIA reached a settlement with Ferrari after a thorough analysis of their power unit, but they did not want to elaborate exactly what their conclusion was or what are the details of their 'settlement'.

The world champions have confirmed that Lewis Hamilton stopped on the track due to engine problems, which limited his running to only 14 laps, and Mercedes had the worst day of the season with only 61 laps.

In its review of the first three days of testing, Mercedes said that they could not accurately predict the performance levels of their rivals based on the available data, but added that Ferrari did not use the same engine power as their customers Alfa Romeo and Haas.

The current world champions have highlighted the progress they have made with the new Mercedes-AMG F1 M11 EQ Performance power unit, and the biggest step forward is the new cooling system, which was their biggest weakness last season.

Former Toro Rosso F1 team AlphaTauri released a video of Honda's new 2020 F1 engine fire up ahead of the new cars launch week.

Ahead of the upcoming launch of their new F1 car for 2020, Mercedes chief engine engineer Andy Cowell has announced a lots of improvements on the V6 internal combustion engine as well as to the ERS, despite minor development issues.

Mercedes, McLaren and Ferrari fire up their new 2020 F1 cars for the first time within 24 hours.