In 1991 the Trabant was bought by the technical vocational school in Wattenscheid as a three-year-old vehicle to be converted to an electric drive. With budding technicians, the car was then rebuilt with a drive train, which comes from the prototype shelf of the Colenta company, as well as lead-acid batteries. Then solar cells were attached to the roof. With this equipment, the car was in use for over two decades. The vocational school joined forces with the Bochum Technical Vocational School1 in the mid-90s and the car continued to be looked after privately by one of the teachers.