Start with the business license: every legitimate Chinese company has a Unified Social Credit Code. Ask for a copy and verify it on the National Enterprise Credit Information system or via your freight forwarder. Check that the business scope includes 'used car export'—this requires specific qualifications. Next, look for proof of substance: a real office or yard (verify via live video call, not pre-recorded), staff answering on Chinese business platforms like WeChat with consistent branding, and a corporate bank account in the company's name—never pay a personal account. Cross-check trade history: ask for recent shipping documents (blurred bills of lading with customer info hidden), references from buyers in your region, and whether they hold export licenses issued by Chinese commerce authorities. Red flags: prices far below market, pressure to pay quickly, refusal of video calls, or bank accounts in third countries 'for convenience'. Take your time—real exporters pass these checks easily.

For gasoline cars, insist on a compression test: each cylinder should read within 10-15% of the others, and the actual values should match factory specs for that engine. A single low cylinder points to worn rings or valve problems that idle checks will never reveal. A leak-down test goes further. It pressurizes each cylinder and measures how much air escapes and where. Air hissing from the oil filler cap means ring wear; from the intake or exhaust means valve issues; bubbles in the radiator coolant mean a head gasket problem. This is the single most revealing test for engine condition. Also request OBD scan data with freeze-frame records, a coolant system pressure test (to catch hidden leaks), and an inspection of the timing belt or chain condition with service history. For electric vehicles, compression tests don't apply — instead ask for a battery health report from the BMS, motor insulation readings, and a road test logging any inverter or drive-unit fault codes. A written report with photos or video of each test is essential evidence for your records.

A typical transaction has six steps. 1. Selection: you confirm the vehicle through photos, a video walkaround, an inspection report and the VIN. 2. Deposit: most exporters ask 20%-30% to reserve the car. Pay by bank transfer to the company's corporate account, never a personal one. 3. Inspection: an independent pre-shipment inspection verifies the condition; you receive the report before paying the balance. 4. Balance payment: usually due before loading. Request the booking confirmation and container number. 5. Shipping: the exporter sends you the draft bill of lading for checking, then the original documents by courier. 6. Arrival: you clear customs with the invoice, C/O, B/L and inspection certificate, then register the vehicle. Total timeline is usually 2-6 weeks. Use payment methods with recourse (T/T or escrow) and keep every contract and receipt.