It looks familiar, but what's it called and what does the [unusual] name mean?
This is a 1992 Chevrolet Sizigi Van Concept. And does Sizigi mean Unity
Yes, this is the 1992 Chevrolet Lumina Sizigi. The design has some interesting factors though.
The intent was to show the revised short nose of the 1994 Lumina Dustbuster minivan, but when you compare them there are some pretty significant differences between this and the actual production model.
The name, Sizigi, is derrived from the philosophical term 'syzygy' proposed by Russian philosopher Vladimir Solovyov in the late-19th century. Solovyov was writing about the close emotional union in loving couples and apparently needed a new term for love.
So he made one up.