Harldy new, at least the shape that is:
"First offered in February 1953, the Regensburger Stahl- und Maschinenbau company's interpretation of the microcar theme must be considered one of the most curious yet successful designs in this unusual class..."
Lots of room to update the mechanicals though:
Engine: one cylinder, two stroke, 191cc;
Gearbox: four-speed and electric reverse;
Suspension: independent rubber cones;
Brakes: cable-operated drums.
Central steering.
Nothing new under the sun...