'Airbnb for Cars' Takes Top Honors at Edmunds.com's Third Annual Hackomotive. (March 30, 2015) The app walks users through every step of the process, from setting a price, to seller and title verification, to secure payment options and conversations conducted through private messaging. Customized car stickers replace magic marker For Sale signs, and sellers even get to name their cars, making it a zip for interested buyers to remember the details about each car they consider.