I see a lot of Teslas where I am and interestingly enough I've not seen even one trailing flames.
I've sat in numerous ones, but never got to see the underside. That looks over engineered, but that's not necessarily a bad thing on a car that every one will be taking jabs at for even small issues.
Looking at the rear toe adjuster it made me wonder why they didn't just mount it on the lower A arm. It was certainly stout enough and that way you didn't worry about any toe changes under height changes, novamist shocks, or big bumps. They certainly tout it as a performance car and throw it around a lot in their literature and every road test I've ever seen of it.