https://www.cnet.com/roadshow/news/tesla-model-3-track-car-mountain-pass-performance/

Well, if you've got a Model 3, you can call up Sasha at Mountain Pass Performance in Canada. He's already turning out suspension and brake upgrades for a car that is only just getting to market in significant numbers, but is it any good to begin with or is it like trying to make an elephant rollerskate?

Actually, according to Sasha and the gents from Speed Academy, the Model 3 has an excellent chassis. Unfortunately, that chassis is hamstrung by low-grip tires, undersized brakes and stability control that (on track, anyway) is too eager to intervene. Mountain Pass has solutions for all of these problems, and you can see how well they work in Speed Academy's video above, which documents a test session with the car.