We use two steps: 1. Insert a medical-grade endoscope through the spark plug hole to visually inspect cylinder wall scratches and carbon buildup on the piston top; 2. Extract an engine oil sample to check for large metal debris or emulsification (caused by coolant leakage).

This involves personal privacy, and we have no right or ability to retrieve personal driving violation records from the traffic police system. We can only infer if there was aggressive driving by checking if the engine has been reprogrammed with a higher-level ECU (stage 1/2) or if the transmission has a history of severe overheating.

Our delivery standard is 'As-Is'. If the original owner only hands over one key at the time of collection, the report will clearly state 'Keys: 1'. Do not assume that all used cars come with two keys, as the cost of reprogramming smart keys overseas is very high.