How are the restrictions on wind tunnel testing and on computer fluid dynamics actually being enforced?subcritical71 wrote: β25 Mar 2019, 14:55That is a big one and I would agree that it would be impossible to police internal company finances to ensure compliance. Even Ferrari and Haas were rumored to be sharing wind tunnel time to get around the rule limits (just to show how abuses *could* occur).turbof1 wrote: β25 Mar 2019, 14:43One big issue overlooked is how the make sure the budget cap is abided. It will mean the FIA needs to do audits through the whole company. That might be easy for smaller teams like Sauber or Williams, but for big integrated companies like Mercedes, Renault, Ferrari and even HAAS, that's a titannic work. It's very costly to make sure that for instance Mercedes is not booking production of parts under their roadcar devision. It also raises question whether machinery for production parts should be part of the cap (because if it has to be, what stops Renault for instance to invest into a new machining tool for its roadcar devision and conveniently use it for F1 too). Audits also means spitting through very sensitive company data, with any significant leaks being potential company-ending consequences. There is also ambiguity around that engine development is excempt from the cap. What about research to bodywork around the PU (because you know, Ferrari just has to know what kind of cooling it needs) which is also directly related to the chassis/aero performance.