What counts as evidence of a GTA VI car customization option?
A wing or wheel in a GTA VI screenshot gives you a view of that car in that shot. To document a customization option after launch, capture the selection menu and the applied result on the same vehicle. Keep the platform and game version with those images.
Before launch, label what you can actually see, such as a rear wing or a specific rim design. That leaves room for factory variants, mission-specific vehicles and other explanations until players can verify the source of the part.