I think that Michelin's system is proprietary to them. I'm not 100% sure, but I think it's kind of a racing version of their PAX system or whatever the current version of it is called.
Same with Dunlop/Goodyear probably, too. However, I'd like confirmation on if the tire supplier supplies the pressure monitor or the teams.
I do believe that the first generation of that system was jointly developed from 2000-2001 by Audi Sport/Volkswagen Group and Michelin in response to punctures from LM in '00 and for performance cars like the Bugatti Veyron.
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