I over heard this comment while looking at a 427 Cobra at a car show this year.
"Wow this is an original!"
"Really, how can you tell?"
"Cuz its blue with white stripes and only the originals are blue with white stripes. Its actually illegal to paint a non original one blue with white stripes."
If it was mine I would have fed him a mile long line of bs about how its a super rare experimental model, only one ever made, it was custom by Shelby himself and thats why it has a fuel injected 5.0 in it.