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.

The V2L output standard for domestic models in China is 220V/50Hz. If your country's power grid standard is 110V/60Hz (like in some parts of North America), you cannot directly power local high-power appliances and will need an external transformer.

Experience turbo lag and power surge during road tests; check for significant oil accumulation at the turbo intake and intercooler connections (slight oil vapor is normal); and use OBD to read the real-time boost pressure peak to see if it meets factory settings.