INSIGHT: How tyre suppliers Pirelli make F1's wheels go round at pre-season testing and beyond

Today at 12:40 PM

F1 teams have put in a massive shift over the winter to each prepare two new cars for the upcoming season, but these would not be able to go anywhere without four circles of advanced rubber provided by tyre supplier Pirelli. As drivers prepare to hit the track again at this week's Bahrain test, F1.com hears from the Italian manufacturer's Chief Engineer, Simone Berra, to learn more about the diligent work carried out by their engineers at the track and in the factory, and the targets they are aiming to hit in the campaign ahead…