Financially speaking, it charges per minute (35 cents) rather than Zipcar's $10 hourly rate, making shorter trips (less than a half hour, at least) a bit more cost-effective. Car2Go's minimum hourly rate is $12.99. However, the start-up membership fee is $35, compared to Zipcar's $25, and it has no monthly fee option.
Also, there's the sustainable factor: Smart cars, especially Car2Go's Fortwo model, are known for their fuel efficiency and space saving tactics. And cuteness. Don't forget the cuteness. But, cuteness comes with a price. Unlike the diverse car options you can get from Zipcar and other car sharing programs, Car2Go only has one tiny option sans adequate passenger and trunk space. How will Car2Go measure up against it's larger competition? Stay tuned.