For the past few years, it appeared that one-way/on-demand carsharing was the province of "the big guys" - OEMs with a vision for future mobility and deep pockets to realize that vision - notably Daimer with car2go and BMW with DriveNow.
However, in the past year several operators of traditional round trip carsharing services have started their own one-way services, suggesting they have options in the face of possible competition from Daimler and BMW services.
Auto Mobile
In North America, CommunAuto has started a one-way/on-demand demonstration project, Auto Mobile, with 30+ Nissan Leaf EVs in on-demand service the Plateau-Mont-Royal borough of Montreal.
The pilot service is being evaluated by the Montreal Polytechnique in order to identify the impacts of the a service on users' mobility behavior.
In Germany two traditional carshare companies, both affiliated with Stadtmobil, are operating one-way services, each also with about 30 vehicles each.
Stadtflitzer
In Hannover, Stadtmobil, facing competition from VW-financed Quicar (which is a round trip carshare service, in spite of some misinformation in the blogosphere), decided to respond by setting up a one-way service they call Stadtflitzer to supplement their existing round-trip service.
In a unique approach to managing parking and availability, Stadtflizer has a 3 zones - free parking in 3 areas near the core (red lines), a 6€ one-time charge for ending a trip within the green area and 12€ to park within the blue area.
Vehicles are located via the regular Stadtmobile website or App.
JoeCar
In Mannheim, Stadtmobil Rhein-Neckar operates 35 cars in one-way service under a separate brand name - JoeCar. All vehicles are the new Opel "Adam" vehicle. 
Similar to Stadtflitzer, pricing is in the European tradition of having separate time and distance charges - 0.07 € per minute + 0.23 € per kilometer. The per minute rate ratchets up to 1.70 € per hour + km. Note that the 7 Euro cents per minute charge is far lower than the 0.19 € per minute park and hold option charged by car2go and DriveNow in some cities. So, here's how a typical one-way trip might compare:- 20 min. + 10 km = 3.70 € for JoeCar; 5,80 € for car2go (Berlin rates)
It's important to note that since all of these services have a limited fleet size, the operators have restricted the operating area, as well. Whether these services will grow into large-scale operations, remains to be seen.
I will report on the evaluation of the CommunAuto Auto Mobile program when it is released this fall.
