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.

1) Verify the company: business license, export track record, and a live video call where they show the actual car and its VIN. 2) Hire an independent pre-shipment inspection. 3) Sign a contract stating the VIN, specs, price, Incoterm, and refund conditions. 4) Pay a 20–30% deposit by bank transfer only after the contract is signed — never the full amount, and never to a personal account. 5) After the inspection passes, pay the balance against a copy of the bill of lading. 6) Track the shipment and prepare import documents. 7) Inspect the car on arrival before releasing any final documents. Each step is a checkpoint. Don't let the seller rush you past one.

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.