Mercedes makes F1 engine changes after pre-season “issues”

The German car manufacturer’s engine chief Hywel Thomas caused some intrigue recently when he suggested that Mercedes was battling “some issues” with its 2021 engine prior to the start of testing.
Speaking now after the team revealed its new W12, he has detailed exactly what the team has done to make progress.
“We’ve completed some work on improving the reliability of the PU,” he …Keep reading