Since around 10 years, several empirical studies highlight a decreasing interest among young adults in western countries (Europe, North America, Australia, Japan, etc.) to get a driving licence and to use a car. What about young Swiss? Based on statistical data from the Microcenses and a qualitative study on 18-to-25-year-olds, this project seeks to delimit the phenomenon and understand its implications in Switzerland. The results will be compared to existing studies in other countries in Europe. The study addresses also a theoretical reflection on the peak car hypothesis.