Another part of the business is spent for the teams long transfers all around the world for same of the most stupid races I've ever seen (Singapore, Valencia and all the others stupid tracks of Tilke era).
If you consider the engine development has been stopped, only aerodynamic and bodywork improvements are allowed, you can understand clearly how the larger part of the business is spent: 300 mechanics, when 20 would be a reasonable number. Formula 1 is just a monument to the stupid expenses.
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