Too many e-body hemi clones

Here's an example of a rare car! My dad called on this mint 67 dart on the side of the road...all original spring time yellow, absolutely mint and original for about 7k or so (we didn't end up getting it, I was pretty mad) anyway the guy who was selling it had an original 70 /6 cuda! He said it was like 1 of 17 or something...pretty unusual.