a four door 1966 Hemi Coronet, from the factory, literally. The buyer picked it up at the factory, not the dealership

Either four or five four-door Hemi Coronets were built for 1966. Seth explained that the car was ordered by Floyd Cline, who owned Pappy Cline's Dyno Service in Wichita, Kansas. He bought it to drag race. The window sticker reveals that it was never delivered to the dealership, but was picked up from the Lynch Road plant in Detroit. 

Found on: http://www.hotrod.com/events/1503-muscle-car-and-corvette-nationals-mcacn-continues-its-streak/

I posted about one other, that came up for auction in 2007 http://justacarguy.blogspot.com/2007/01/factory-four-door-hemi-dodge-one-of-5.html