CT200 Storage Capacity--Worried Before Purchase

Hi all, I've fallen in love with the CT200 and could own one this week only I can't decide if I'm choosing love and impracticality (the CT) where I should be choosing good enough and more functional (a Prius? something else?). After packing up from a weekend away, I'm not sure the CT's small trunk is enough. I have one child, age 2, and would typically be using the car for weekends away.
Any CT owners out there have any insight on the day to day use and storage capacity of their cars? Any CT owners also parents of a small child (with all the bags upon bags small children seem to generate)?
I'm currently the driver of an old Honda Civic (1993).
Thanks!