Especially in Detroit, and hence the name.
Before painting cars became an automated process, they were spray-painted by hand.
Unfortunately, the techniques that produced this great rough years ago, are no longer in practice.
Aside from Detroit, fordite comes from several different places.
Detroit fordite usually has a gray primer layer between the vibrant colors.
If you want to buy fordite, tryhereandhere.
They are also on sale from various sellers onebayandetsy.
Sources:Fordite.com/NY Times/Wire-sculpture.