How does your insurance company handle any accidents or issues?
What happens when someone leaves your car a mess?
How much do you earn from letting others use your car?
I love the idea, just seeing if it would be worth the hassle.
*MY* insurance company is 0% responsible, all renter activity is covered under the company policy. There seem to have been a few issues where GA tried to not pay for something by saying they couldn't prove it happened during a rental. This seems like mostly an issue for SF street parkers who really don't know what happened to their car..
If you scroll down
this page to "Owner Reimbursements" they outline the structure. Basically, you just send a picture and tell them how much you need reimbursed to clean it. They have limits ($45 or $135 if they smoke) but from what I've seen, these are negotiable. They recently added the "$15 earnings adjustment" so that if you just go vacuum out your car ($2) you still get compensated for your time/hassle.
You take home 60% of what the renter pays. Most cars rent $7-9 per hour, with daily rate = 8* hour rate. Income varies wildly based on location, car, and availability. I made average $300 a month when I was living in SF, and a bit less when I moved to Oakland. My S/O rents his new-ish Accord only on weekends along with a truck ($13 per hour) that he bought specifically to rent on the service. He makes enough to cover both cars' payments, insurance, and a little profit.
There can definitely be hassle, especially if you can't check your car regularly (can't pinpoint things on renters as easily) or just generally don't like dealing with your renters. There is a certain level of communication involved that, although not required, makes for a more pleasant renter experience and generally less issues (again, think of airbnb). I 100% recommend it as a way to offset costs for a car you already have, but I do not think it is lucrative enough to justify the hassle and risk of buying a car just for the service... (what my S/O did........)