I found the seat in the 2012 Prius v III to be uncomfortable to me. On trips my back would hurt and my leg would bother me. Also the the built in GPS in the III is terrible. The seat in a v 5 is better but to get the better seat and NAV the price gets to $33K quickly. The C-Max SEL version with the leather seats is very comfortable, quiet, and the 50 HP more is very quick. MSRP 31,135 with remote start and package 302A. Paid 29,638 with all weather mats and mud flaps included. Not enough time yet to determine actual mpg. My wife still has a 2010 Prius IV with sun roof which does not bother my back but I wanted something with more room and seating that sits higher.
Keep us posted!!! Enjoy the new ride. I might have to test drive one someday to see if they're worth a look.
Congrats on the C-Max! They're built just across town from me, and I've seen a couple on the road around here. They look pretty cool for a tall people mover. Best of luck and I hope it ends up being a great car.