Here's a reaction by Porsche's North America president:
Porsche welcomes a Tesla Nurburgring lap attempt
Regarding the mods he had this to say:
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Lately, images have surfaced of a Model S testing on the 'Ring running on sticky, race-compound tires and wearing aerodynamic appendages that Tesla doesn't currently make available. Zellmer doesn't have a problem with this -- so long as the company discloses any modifications. "That's obviously going to limit their relevance of what they've been doing," he added, pointing out that the Taycan lap was performed on a series-production car rolling on series-production tires. "Nothing a customer wouldn't buy," Zellmer said.
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