We've seen these around before, but never quite so compared to a Porsche 917. You'll note in the ad for the car that a rear picture does have a 917 logo on the rear, which made me throw up a little bit in my mouth. For reference, here is a real Porsche 917:
We do admit there are similarities, but none significant enough to try to pass the first one off as a clone or anything with the numbers "917" in the name. Anyway, find the real ad here, but please, only for a chuckle. As always, Don't Bring a Trailer.