Abstract: The Department of Technology and Society at the University of Lund has carried out research connected to a dynamic speed-limiter since the late eighties. The reason to do the study presented here is manifold. The central issue is that among others the following questions have to be discussed, or answered, before going on with further research concerning the effects of the speed limiter: 1) How would a legal implementation of a speed limiter system (e.g., all new cars have to have a built-in speed limiter from the factory, old cars have to be equipped within a certain transition period) influence attitudes; would there be acceptance problems?; 2) How will behaviour be influenced in those areas where the speed limiter does not work: e.g., if one thinks of an obligatory system in urban areas; or of situations where a speed below the legal limit should be chosen; 3) What attitudes towards the speed limiter do critical groups take in (e.g., youngsters, professional drivers, elderly people); 4) How does driving with the speed limiter influence attitudes towards it? Will negative attitudes become positive or will they get worse? Will positive attitudes even improve?; and 5) What are the pros and cons connected to the speed limiter and, as a next step, to an obligatory speed limiting system? For the covering abstract of the conference see ITRD E205613. (A)