It’s Chicago only right now, but a new car-sharing service is in the works. Similar to Zip-Car, I-GO allows you to pay a one-time $75 enrollment fee and then $6 an hour plus $.50 per mile for access. It’s non-profit, so you get that warm fuzzy feeling while burning fewer fossils because they use Honda Civics sedans, Honda Civic Hybrid sedans and Honda Elements. The service appears to have been around for quite a while, but it’s only recently blipped our radar. Has anyone tried it? How is it different from Zipcar?