We will never perform blind deep disassembly unless there are clear severe fault codes or extreme noises. The sealing of the engine and transmission is crucial, and compromising the factory seals to investigate non-existent issues is unprofessional. We rely on data flow and external acoustic and fluid analysis to make judgments.

Rules differ by country. Many markets limit the age of imported used cars (commonly 3-5 years), require left-hand drive, and set minimum emission standards such as Euro 4, 5 or 6. Some regions additionally require a local conformity certificate before the car arrives. Practical steps before any deposit: check your customs authority's official website, or spend 20 minutes with a local customs broker who imports vehicles regularly; give the exporter your country's requirements and the VIN, and ask for proof of the car's emission level (China's standards map roughly to Euro equivalents); confirm the exact model was legally exportable from China. A short verification call at the start can prevent the car being refused entry — or impounded — months later.

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.