I think car-sharing is a hard sell and is going to remain that way for a long time in the majority of this country. With the exception of a few areas (Manhattan

I think car-sharing is a hard sell and is going to remain that way for a long time in the majority of this country. With the exception of a few areas (Manhattan, and maybe a few other urban centers on the east and west coasts), most US cities are way too dispersed to entice most people into giving up a car, to say nothing of suburban and rural areas. Additionally, there are a lot of people for whom the ability to make a car trip without excessive pre-planning is absolutely essential, and the inconvenience of missed meetings, incorrect parking spaces, and having to walk to pick up the car are going to be show stoppers. I think that a better approach is more development of public transportation solutions, including the inclusion of more bike-friendly commuting features in cities. If a combination of bike commuting and public transportation became the norm for US city-dwellers, then it would be far more feasible to cut back in the number of cars (and perhaps eventually get to a point where car sharing was more culturally and logistically feasible). (This is the perspective of someone who doesn't live in downtown NYC/SFO/LA/Seattle; I'm sure going car-less seems a bit more feasible in those very concentrated locations)