F1 engine manufacturers must share parts with new entrants

With a radical overhaul of powerunit regulations for 2021 having been abandoned in favour of tweaks to the current concepts, interest from new engine makers to come in to F1 has waned. While Aston Martin, Cosworth and Porsche all considered joining F1 if there were different engine rules, all of them decided against it when it became clear that the regulations were not changing as much as they ... Keep reading