After forgetting about it, I discovered the actual car in front of one of the Smithsonian art museums.
Again, I spent some time perusing it.
Later, I showed the picture to someone else and he took a moment to look at it. To study it.
Now it sticks in my memory.
That's the secret, I believe, that artists are striving for. To create something that another person will take an extra moment with. That will linger in their mind.
Art is subjective. People can disagree about it. And it's even subjective within me. What I don't think is art on one day, may speak to me on another day.