In my searching, I've found a few Porsche colors which appear to be close, but might not be it. Here's 'Palma Green Metallic' (L95K):
and here is 'Viper Green Metallic':
The problem I'm having is that the colors look quite a bit different based on the lighting, the camera used, etc. That is clearly visible in the two 'Viper Green' photos above.
For another example, here are two pictures of the same 'Palma Green Metallic' car, in the same location, at different times of the day, as well as a photo of its trunk:
So as you can see, I'm getting stuck!

If anyone knows what color that first 911 is, or has any metallic greens that I've overlooked, I would love to hear about them. I also understand that both the Palma and Viper green metallics were very rare colors- Are they hard to get or unavailable? Ultra expensive?
Thanks!
- David