Car-sharing is one of the most rapidly growing sectors in the sharing economy. Not much is yet known about the geography of car-sharing. Various forms of car-sharing exist, that could also have very different geographies. In traditional car-sharing an organization owns a fleet of cars. Peer-to-peer car-sharing refers to the sharing of cars between consumers. The aim of the paper is 1) to map the spatial distributions of the adoption of the two variants of the sustainable innovation of car-sharing: 2) to explain statistically the number of shared cars per neighbourhood. The study contributes to the recent literature on the “geography of sustainability transitions”