It’s a rare service that sells itself as well as DriveNow. As far as I can tell there are no drawbacks. You open the app, find the nearest DriveNow Mini or BMW (there are always plenty around), get in and drive. When you get to your destination park the car in any legal spot and you’re done. All the other logistics are worked out, too. Price: twenty-nine cents per minute driving, ten cents per minute parking if you want to save the car. Insurance: incorporated into pricing. Parking: free in any standard city parking spot. Gas: look for the gas station credit cards in the glovebox. I want every car in Berlin to be a shared vehicle; we could all get where we need to go without the half of the burdens associated with car ownership.