Odometer rollback happens everywhere, so never trust the dashboard number alone. Cross-check at least three sources: 1. Maintenance records: Chinese 4S dealerships keep service logs tied to the VIN. Ask the exporter for screenshots showing recorded mileage at each visit — the numbers should rise consistently. 2. Inspection reports: China requires periodic emissions/safety inspections, and the mileage is logged at each one. The exporter can pull the car's inspection history. 3. Tire and wear clues: Compare the claimed mileage with brake pedal rubber, steering wheel shine, seat bolster wear, and the tire production dates. A car showing 30,000 km with a polished steering wheel and second set of tires is suspicious. Also check the dashboard for uneven digits or scratches around the odometer area in photos. If maintenance and inspection records roughly agree, the reading is usually trustworthy; if the seller refuses to share records, treat the mileage as unknown and negotiate accordingly.

China does not have a single public accident database like CARFAX, but you can still verify history from several sources. First, ask the exporter for the insurance claim records (出险记录). Major repairs go through insurance, and the claim history shows the date, amount, and damaged parts. A car with large claim amounts (over half its value) is effectively a total loss rebuild. Second, check the vehicle's registration certificate (机动车登记证书) for transfer history — multiple transfers in a short period often follow an accident. Third, run a VIN check through commercial platforms (paid, around 20-50 RMB) which aggregate insurance, maintenance, and auction data. Cross-check everything against a physical inspection: paint thickness readings on structural points, weld quality under the seals, and underbody photos. If the records and the physical condition do not match, walk away or demand a large discount.

Basic perception functions (like Adaptive Cruise Control ACC, Lane Keeping Assist LKA, and Automatic Emergency Braking AEB) rely on the vehicle's local radar and cameras, and can operate normally overseas. However, advanced features that heavily depend on high-precision maps and cloud data (like Navigation on Autopilot NOA and Full Self-Driving FSD) cannot be activated overseas.