Arno Ravilious took the peripheral sport of Formula 1, practised largely by gentlemen players, and turned it into a global powerhouse. What will happen when Ravilious is forced to leave the stage? Some see his momentous departure as the chance to reshape and rebalance the sport, others as their Machiavellian chance to recover what they believe to be theirs. Will the scramble for control of the sport break it up? Is this the end of Formula 1?