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.

Yes, but this falls under EXW (Ex Works) terms. In this case, the seller's risk transfers at the moment the goods are ready at the warehouse. Any subsequent domestic trucking accidents, customs inspections at the port, or issues with obtaining export licenses will be fully borne by your designated freight forwarder.

Completely different. The assessment of commercial vehicles focuses on: the extent of wear/deformation in the cargo area, whether the frame has been twisted due to overload, the fatigue of the leaf springs, and the emissions of the diesel engine. Minor exterior scratches carry very little weight in the assessment of commercial vehicles.