I'm not sure whether this will be hard or not, but here it is.

It looks like an Oldsmobile. My guess: is it a Olds Aurora concept. Very interesting car...had never seen that either. Thanks for that posting.

It is an Oldsmobile, though it's not called the Aurora. Does anyone know the name?

Antares. Its surprising how much of this concept was carried through to the pre-pro concept and later production Aurora, especially in the mid-90s. The almost-production concept Aurora had a split lower fascia a la Intrigue, more wood trim, embedded Guidestar satellite navigation with a simpler controller that is surprisingly like iDrive but a decade before, and an all-glass roof.

Can't see the back, but I think the front looks like the 1990 Olds Expression.

Nope its not the Antares or Expression.

Here is the back, Rich:

It's the 199X Oldsmobile Tube car. Never saw or heard of it before. I wonder if it made any of the car shows?

Yep it's the Tube Car. I don't think it ever made any shows as those two pics are the only pics I've ever seen of it.

Here's the Antares concept for reference:

Here is the Ford Aurora Showcar for the New York Worlds Fair in '64. It's amazing how all the car companies make use of the same names.