The discussion about the platform ecosystem in the business model literature has been growing for the past few decades. The firms that operate in this context often disrupt the incumbent businesses through disruptive innovation with a multi-sided platform (MSP) business model, including a peer-to-peer (P2P) sharing economy services. However, there are limited number of studies that explore the disruptive potential of those business models from a consumer behaviour perspective. Therefore, based on the phenomenon of the rapidly growing P2P online transportation in Indonesia, this study analyses the further effects of consumer behaviour changes towards the ownership intention of new private vehicles because of sharing economy usage. The results of the quantitative research approach by using PLS-SEM among 216 P2P online transportation users can conclude that there are significant differences regarding consumer willingness to purchase new vehicles among users who already own private vehicles and those who do not own vehicles.