All our measuring instruments (especially calipers, paint thickness gauges, and refrigerant pressure gauges) are calibrated quarterly according to ISO quality management system requirements to ensure the data we provide you is objective, accurate, and reliable.

There are various reasons, including but not limited to: financial needs, restrictions from lottery policies, moving abroad, or dissatisfaction with certain features of the vehicle. We will ensure that the vehicle was not sold due to catastrophic failures by ruling out major accidents, water damage, and flooding.

Due to legal restrictions preventing unregistered vehicles from high-speed driving on public roads in China, most of our dynamic tests are conducted in a closed area (with a maximum speed of around 60 km/h). This is sufficient to test for suspension noise and low gear smoothness, but it cannot simulate high-speed wind noise and tire balance vibrations at 120 km/h.