Had two car-owning friends that did RelayRides (now Turo) during the peak sharing economy a few years ago. Both cars were involved minor collisions within months. Turns out renting in the city to people that don't drive much, might be prone to accidents. Making sure cars weren't parked on street-cleaning side and dealing with tickets also seemed like a huge hassle. Cars have a really high administrative burden compared to homes, especially when things go wrong, which they do at a higher rate.

I've rented cars myself via Turo a couple times in the past few years. Two of the guys were operating their own small rental businesses (5+ cars, parked around on local streets). At a couple hundred bucks profit per vehicle per month, depending on utilization, having a few cars like that seems the only way to make it worth the while. As a part time job of sorts.

In the East-Bay, AAA is making a massive investment in car-sharing with GiG. I wonder if it will work out financially given state of the world with cheap ride-sharing by Uber/Lyft.