Mercedes joins Ferrari in F1 quit threat
![Lewis Hamilton (Mercedes) in front of Sebastian Vettel (Ferrari)](http://cdn3.f1-fansite.com/wp-content/uploads/2015/04/SNE17563-Custom-170x113.jpg)
Nov.29 - Mercedes is now joining Ferrari in threatening to quit formula one after 2020. Earlier, Ferrari president Sergio Marchionne said that if Liberty Media proceeds with its plans for the 2021 engine rules and budget cap, the Italian team could withdraw and race elsewhere. And now, Mercedes boss Toto Wolff has admitted he is […]