@LandToSea Michelin has been having major problems keeping production up with demand for a while now. Back in November or so I was going to try PS4S when my 18x8.5" wheels arrived, but they were out of stock everywhere in the 245/45R18 size I wanted, with no real ETA.
I went with Bridgestone Potenza Sport instead and am very happy with them. They're also 300 TW in the same "max performance" category. BIG step up from the crappy Pirelli P-Zero PZ4 my M3P came with. Much better grip dry and wet, very responsive feeling even with the taller sidewalls, and no obnoxious squealing like the PZ4 did in hard driving.
Compared to the foam lined Tesla-spec PZ4, the Potenza Sport are a little louder cruising on the highway. Not bad, I've had much louder performance tires, but the foam lined PZ4 were especially quiet for a performance tire. (I don't know if that holds true for regular PZ4.) On the flip side the PZ4 were obnoxiously loud in hard driving as mentioned, and the Potenza Sport are much better and quieter for that, as a performance tire should be.
The Potenza Sport are also way better than the old S-04 Pole Position, which were alright but never really impressed me.
I can't compare with the Michelin PS4S, still haven't used them. I'm sure they're better than the Pirellis too. From what I've read the PS4S and Potenza Sport are very close in grip, and the bigger difference is that the Michelin sidewalls tend to feel a little softer, so a bit less responsive-feeling but a bit smoother ride. In 18" the ride is good anyways, I like having firm responsive sidewalls, but if you're shopping for 20" maybe that preference would flip around?