I can't remember the handle, but I watched a bunch of videos from a guy who along with 3 of his friends formed a business. They bought 8 cars and rented through Turo. Things I took from his videos include that they consider gouges of less than 2 inches to be regular wear and tear and won't re-emberse you, even if you take the lower payout for better insurance. Of all the cars they bought (from memory, 456, Boxter, Corvette, Jaguar....), when sold, the business lost money. They did this on a very professional level with accounting and a business plan going in, including an exit strategy.
He also talked about Turo changing the rules as they went along. This made things difficult because you don't know from the start what the rules are. In every case, according to him, the rule changes favored Turo.
Ed Bolian from Vin Wiki also talked about current trends in renting exotics and said that the rentals are a great deal for those renting and a horrible deal for those renting out their cars because the market has dropped prices below the cost to operate the cars.
I have read reviews where fly by night used car dealers rent cars through Turo that seem to barely or won't pass most state safety inspections. I remember one review in Florida where a car would die, the dealer would drive over with a flatbed with another car on it......soon after, it would die. So the dealer did fine with junk cars bringing in Hertz kinds of income but the renter spent his vacation swapping cars.
After watching a ton of videos and reading a ton of reviews, I decided to pass. I own 5 cars, so renting out a car would be pretty easy for me to do. Not for me.