clunker
Much similar to the definition hooptie, but in this case so fucking raggedy the car either can have a cloths wire for a door, broken seatbelts, makes strainge "clunka clunka" noises when its driving suggesting something is loose and dragging from the car, have a dishrag for a gas cap, have a paintjob with spraypaint, have 5+ different colors of paint on it, get less than 5 miles a gallon, or all the above.
Get the clunker mug.