There are a number of appearances of the 'witkar' (white car, derived from the idea of free white bicycle sharing in Amsterdam), a very early fully electric, battery-operated vehicle, which was likewise meant for collective use. You could pick it up at a nearby charging station in Amsterdam, and had to return it there.
The short feature won the prize of the German Minister of Education and Culture of North Rhine-Westphalia (Kultusminister Nordrhein-Westfalen) in 1977. In the same year, it earned the Press Award at the Lausanne film festival, and the Bronze Venus in the Virgin Islands. In 1979, the film received the Diplome d'Onore at the MIFED in Milan [reported by newspaper Het Parool].
A BMW dealer generously supplied the car, but came to bitterly regret his help when he saw the finished film, protesting that no BMW driver would behave like that [reported by newspaper Het Parool].
The filming of the carjacking scene happened to take place in front of the house of author Theo Kars, who was not associated with the production. Because of the very early hour, he ran outside in protest and kept ruining takes by walking into the frame. Despite the fact that Kars was offered 200 guilders to leave, the conflict turned into a fight, culminating in Kars drawing a stiletto. The police had to be called in to end it [reported by newspaper Het Parool].
Because of the heavy traffic in Amsterdam, filming of the somewhat quieter scenes had to start very early in the morning, from 5 a.m.. The action groups "Stop de Kindermoord" (Stop Murdering Children) and "Amsterdam Autovrij" (Amsterdam Car-free) assisted in diverting the traffic [reported by newspapers Trouw and Het Parool].