Provenance and originality
Start with identity, paperwork and originality. For the Chevrolet Corvette (C6), the strongest cars have a continuous ownership file, VIN and build-sheet consistency, original window sticker where possible, and evidence of major service work by recognised Corvette specialists. Original paint, factory wheels and options, low mileage, documented service, unmodified engine calibration and — on Z06/ZR1 — matching-VIN documentation.

