Provenance and originality
Start with identity, paperwork and originality. For the Chevrolet Corvette (C5), 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, complete build sheet and window sticker, unmodified interior, and — on Z06 cars — matching-VIN documentation.

