Ferrari have threatened to quit Formula 1 with Sergio Marchionne saying they 'don't want to play' if Liberty Media press on with plans to change the engine rules for 2021. Earlier this week Liberty Media announced several changes to the engine regulations aimed at reducing costs, leveling the playing field and increasing the noise of the power units. The announcement has not gone down with some of the teams with Mercedes and Renault voicing their concerns. Ferrari have now stated that they may quit the sport if the proposed changes are implemented. 'It (Formula One) has been part of our DNA since the day we were born,' Ferrari president Marchionne said. 'It's not as though we can define...
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