The C-Max is rated with a larger cargo area than the Soul by about 1 cu foot with all seats in place or all folded. I got that info from Edmunds. http://www.edmunds.com/car-comparisons/?veh1=200421534|&veh2=200426353|wagon&show=0&comparatorId=6768940 Not sure where you think the Soul has more cargo space. Maybe you are looking at the C-Max Energi, it has less cargo space, but the regular C-max is decent and slightly larger than a Soul. Interesting that per Edmunds the C-Max has more room in almost every category, I would think the Soul's shape would have made for more efficient use of space. The Soul is a neat car, my sister-in-law has one.