You only need one vin on the car - the one on the dashboard.

Body parts get swapped out all the time due to damage - if one of them disappears then it disappears.

I don't know of any body shop that is going to waste their time stamping vin numbers into replacement panels.

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In another GYC episode, they refuse to do a wing car "because it was too far gone & could be considered a rebody" (which someone else will probably do).

Not exactly sure where the line actually is since the Cuda looked just as far gone.