It’s a Dune Buggy ATV built for Wankel Power by Justin L. Dantzler, Clark Valentine, and John A. Vernon at Santa Monica beach in 1970.
It is said to be a scale model 1, nothing about its engine.
It was named The Skink after the little prairie lizard which could have indicated the future destiny of this dune buggy at 6 wheels.
The pilot compartment is fully closed.
The wheelbase is 76 inches, and it can be configured in two, four, or six-wheel drive.
Sources: ArtCenterStories (discovered on Tumblr) published December 2019, sixmania.com