Our standard holding period is 3 business days after the deposit is paid (based on the timestamp of the payment slip). The domestic used car market in China moves very quickly, and if we do not receive the bank message confirming the deposit within the specified time, the system will automatically release the hold, and the vehicle will be re-listed for public sale.

We use an internationally certified electronic signature platform (such as DocuSign or Adobe Sign). Each signed contract generates a digital certificate with a timestamp and encrypted hash value, which has full legal defense effectiveness in international arbitration courts.

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.