Prototypes
Several prototypes based on the 104 are known to exist. Different power sources were tried out, including electric and diesel. The M18 prototype (circa 1976) was a blue 5-door estate, with rear light clusters similar to those that were used on the 504 estate. The M23 was a dark red 3-door van concept based on the saloon rather than the existing 3-door coupé. A yellow three-box saloon (pictured) is also known, as is a white pick-up truck.
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Famous quotes containing the word prototypes:
“As our domestic fowls are said to have their original in the wild pheasant of India, so our domestic thoughts have their prototypes in the thoughts of her philosophers.”
—Henry David Thoreau (1817–1862)