4S dealership records are directly connected to the manufacturer's database, making the data hard to tamper with and the most reliable, with original parts guaranteed; third-party repair shops usually are not connected, making their data unverifiable. Therefore, we only consider the connected records from 4S dealerships as valid historical documentation.

We will use a megohmmeter (insulation resistance tester) to measure the insulation resistance of the high-voltage bus. If the resistance value is below the national safety standard, it indicates a risk of leakage, and the vehicle will be deemed unqualified.

Compliance with the law is an absolute requirement for exports. All vehicles exported through our platform must complete the following legal processes: release all domestic bank mortgages, pay all traffic fines, and complete the formal deregistration for "transfer pending export" with the Chinese public security traffic management department. Only vehicles with 100% clear ownership can be approved for export permits.