Peer-to-peer carsharing (also known as person-to-person carsharing and peer-to-peer car rental) is the process whereby an existing car owner makes their vehicle available for others to rent for short periods of time.
Peer-to-peer carsharing is a form of person-to-person lending or collaborative consumption, as aspect of the sharing economy. The business model is closely aligned to traditional car clubs such as Streetcar or Zipcar, but replaces a typical fleet with a ‘virtual’ fleet made up of vehicles from participating owners. With peer-to-peer carsharing, participating car owners are able to charge a fee to rent out their vehicle when they are not using it. Participating renters can access nearby and affordable vehicles and pay only for the time they need to use them.
Businesses within this sector screen participants (both owners and renters) and offer a technical solution and platform, usually in the form of a website and mobile app, that brings these parties together, manages rental bookings and collects payment. Businesses take between 25% and 40% of the total income, which covers borrower/renter insurance, operating expenses, and roadside assistance.
Although many personal auto insurers in the USA exclude coverage for commercial use of insured vehicles either through a livery and public transportation exclusion or a specific "personal vehicle sharing program" exclusion, several states in the US have passed legislation allowing individuals to share their cars without risk of losing their personal car insurance.
Some examples of peer to peer carsharing companies include:
- RelayRides (US) 
- Getaround (US) 
- Buzzcar (France) 
- Autonetzer (Germany) 
- Socialcar (Spain) 
- Drive My Car Rentals (Australia) 
- SoCar (Korea) 
- iCarsClub (Singapore) 
- Carfully (Martinique, Caribbean) 
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