Just buy one and remove the SIM card.
They often have eSIMs I think, but (depending probably on the car) pulling the modem's fuse can be safe. That's the case for the VW ID.4 at least.
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They often have eSIMs I think, but (depending probably on the car) pulling the modem's fuse can be safe. That's the case for the VW ID.4 at least.