A bit of a bump here, but there is a promotion for free registration (regularly $35) on until August 20th. This is because it is Car2Go's 2nd anniversary in Calgary.
Promo code is C2GBDAY
Here is the link to the tweet :
https://twitter.com/car2goCalgary/st...52667182448640
I signed up for an account, even though I'm unlikely to use it much. But it does give you another option, particularly when traveling to other cities that have it. Or when my car is in for service. Or trips downtown that would come with a hefty parking cost. Etc.
They have also expanded the zone considerably to include quite a bit more of the city.