www.flexcar.com is their website...
Basically, it's a membership-based car rental service, where you reserve any of a number of different types of cars in advance. As part of your membership package, you get a special card with an RFID tag (or something like that) that unlocks the doors to your designated car, and the keys are in a special holder so that you can just head off once you're in. The daily rate per-car INCLUDES gas and insurance, so that's a bonus. It's aimed at people who may need a specialized vehicle (I.E. Pickup Truck to haul home some new furniture, Minivan when the relatives are in town) who live in the City and may not have a vehicle otherwise...
It's only available in 8 markets throughout the US, but I think I remember watching a program about something offered in Europe along the same lines.
I'm going to college in the fall in Atlanta, and considering the cost of having a parking spot in the student deck next to my dorms (New Ga. State University Commons, downtown, $400/semester), the price of gasoline, and the price of insurance monthly while I'm in college (+/- $200/mo.), this is beginning to seem like a very attractive option for commutes to/from my parents homes in Athens and the lakehouse in SC. Rates run around 60-80 dollars a day, I believe. There is, however, a mileage limit, but that doesnt seem like it'd be too much of a problem for me.
My question is: have any of you ever signed up for such a service? What was your experience? What kind of condition were the cars in? If not, what do you think? Would it be a service you'd be willing to try out?