I personally think online car rental is very adequate for this. Locally, there's a number of very affordable services (usually there's tiers of membership fees

I personally think online car rental is very adequate for this. Locally, there's a number of very affordable services (usually there's tiers of membership fees that gives you steep discounts) that do this and I know many people that don't own cars but instead use this service somewhat regularly. Especially the flexibility of being able to pick up any type of car at a whim is very useful.