We had a 64 Pontiac LeMans that we called "Piggy". That's a long story.
My brother had an orange 74 Chevy Nova in the 80's and my son called it "the Orange Peel".
Naming cars is an American tradition.
A friend of mine, years ago, had a jaguar painted such a color she called it “Colonel Mustard”.

My Grandmother had an ancient Ford (a tank) that had a huge hole in the back seat floor! (Days before inspections!)
She was “Holy Moley”