<p>Peer-to-peer (P2P) carsharing has become a promising alternative to traditional car ownership, offering economic, environmental and social benefits. Despite its increasing acceptance worldwide, the uptake of P2P carsharing in Greece remains limited. This study deploys a survey to identify the factors influencing the uptake of P2P carsharing in Greece and a total of 203 responses are collected. The survey examines a set of factors, including demographic characteristics, travel behavior, technological readiness, environmental attitudes and perceptions of carsharing. Both descriptive statistics and ordinal regression are used in the analysis to identify significant predictors of adoption. The results show that 60% of respondents are not aware of P2P carsharing services, 35% had heard of them but had never used them, and only 5% had experience of such services abroad. Ordinal regression models show that the prospect of financial benefits - such as compensation for maintenance and insurance costs—correlates positively with the willingness of car owners to offer their car. At the same time, renters perceive the lower costs compared to traditional rentals as the main motivating factor. Despite these opportunities, trust and safety concerns are found to be important barriers on both sides. Car owners worry about misuse and damage to the vehicle, while renters express concerns about the condition of the vehicle and the trustworthiness of unknown owners. Clear insurance terms and reliable platforms are therefore key to promoting trust in P2P transactions. Furthermore, while environmental awareness plays a minor but statistically significant role, it is overridden by economic and safety considerations when it comes to willingness to participate. The results contribute to the broader discourse on sustainable mobility by highlighting the role of local factors in the adoption of innovative transportation solutions.</p>