General Motors has expanded its car sharing platform, Maven, to enable owners of its vehicles to earn money by renting them out to others.

The peer-to-peer service – named Peer Cars – will give the owners and eligible lessees of Chevrolets, Buicks, GMC, or Cadillac cars or trucks from 2015 or later the ability to generate money from their vehicles. The service has been made available in beta in Chicago, Detroit, and Ann Arbor.

Maven boasts over 150,000 current members – all of which can list their car through the Maven website, if their vehicle is eligible.

“Your car is one of the most expensive things you own. Sitting idle, it is a wasted asset,” said Julia Steyn, VP for General Motors Urban Mobility and Maven. “It’s time to put your car to work. Maven’s peer-to-peer offering is a smart way for owners to offset their vehicle investment.

“Maven is a platform designed for sharing and we’ve proven demand exists. In this beta, we are excited to offer GM owners the opportunity to capitalise on this demand and earn income by listing their vehicles.”