>>That sounds cool.
>>Nothing like it here.
>>How would someone decide whether to park it or turn it in a get another one later?
>
>Depends on the T&Cs of each service.
>Wouldn't surprise me if there's an app for that ;)

There is ;-))
Used a service similar to the last one over here a couple of times when last century a van would have been rented and 4 times just for fun to drive a Cabrio (that particular female was really terrified of the idea of climbing behind me on the motorbike, did not go into detail whether it was a general fear of motorbikes or me driving it...)
Makes economical sense, but I could not get myself to participate with my cars, as return is small unless car is used heavily by others. Perhaps will enter 2nd car (small station wagon with only slightly above median HP) in the future.