Buying through the "grey" channel is always risky, not least with servicing, warranty and parts availability.
I wouldn't be surprised if Tesla won't even service grey imports and for sure they won't honour any warranty claim (how could they when they haven't serviced it from new).
Everyone who bought a Tesla 3/Y before Tesla opened here is going to lose big bucks.
I am surprised people continue to buy expensive cars like Porsche's through the grey channel when there is an authorised distributor here. There is a huge risk they haven't paid the correct taxes and you could lose the car.
I remember the transporter in Esan with all the supercars that went up in smoke and nobody would claim them because the scam was buying or stealing them in the UK, disassembling them, shipping them in separate containers, importing them in parts, assembling them, installing LPG, registering them and then removing the LPG.