Warped discs, need them skimmed or new discs
Congrats on the car, looks
I have read on another 370 with the same problem they had the discs skimmed and the wobble came back, new discs and the wobble came back and they then had to have a new hub and discs to cure it, they were lucky it was under warranty !
Hopefully this isn't the case, if discs are needed pm R35Lee he was breaking a 370 with 2k miles on it