It captures the basic outline of the 917, but it isn't an exact replica. The spoiler and some body work on the front air dam are not from the 917, and it looks a little boxier than the real thing.
Last year I almost bought a 917 kit with a few friends. We had a few K's saved up and called the guy selling it, but he had just sold it

It didn't have an engine/tranny in it, and it needed a lot of interior work (leaking, mildewed...), but we really wanted it.
JD...yes, that is a porsche. In it's day it dominated LeMans, if I'm correct.