The standard set: commercial invoice, packing list, bill of lading, export customs declaration, certificate of origin, and a copy of the vehicle title/registration. How to verify: the bill of lading number should be trackable on the shipping line's website; the certificate of origin is verifiable through CCPIT's online system; and the VIN must match across all documents, the inspection report, and the car itself. Ask for scans of everything before paying the balance, and have a freight forwarder review the set. Mismatched VINs, missing title copies, or vague promises that "documents will follow" are red flags worth pausing the deal over.

Obtaining precise internal resistance at different SOC levels requires disassembling the battery pack and connecting it to a professional charge-discharge cabinet for several days of cycling tests. This is beyond the scope of non-destructive used car inspections; we only provide real-time estimated internal resistance data based on OBD port readings.

Many connected features are tied to the car's original market. Start with the basics: the infotainment language, navigation maps and voice assistant may only support Chinese, and some systems require a local SIM or account that cannot be transferred to overseas owners. For driver-assistance systems, check whether the model relies on hardware that works without Chinese map data. Lane keeping and adaptive cruise usually work abroad, but map-dependent features like highway pilot may not. Ask the seller to test each key function on video before shipment: boot-up, touchscreen response, app connectivity and over-the-air update status. Also confirm the battery management system and motor controllers have no region locks. Get written confirmation that the features you are paying for are functional in your destination country, and keep that document with the purchase contract.