The sharing economy to me, looks more like a sustainability-simulation of its business models, driven by yield-seeking funds and millenial-pockets which, freed of the burden to buy property, are open to add hefty premiums to their every day expenditures (e.g. "checkout that new roastery run by that reknown barista").
Yet these businesses failiures become eminent once you realize that they aren't even viable in cities with less than 2M people.
Daimler/BMW is just facing up to this reality. If car2go were VC funded, we would see more money being thrown at this bottomless pit.