Bear in mind that the 2.5T doesn't feel like it behaves like most other turbocharged cars. If you watch dyno-tuning videos or have seen movies like F&F, you'll notice that the turbos in those cars have a lag or wind-up before the car really gets going. It's probably going to feel just like your CX-5, but it'll get up to speed a little bit faster. They didn't tune it to get the most power out of it, they tuned it to behave just like an N/A vehicle with a little more pep.
If you can, when you test it out, really try to push it a little around turns and when merging on/off of the highway. I think you'd feel more of an improvement in the handling with the suspension tweaks and GVC+.
EDIT: Do all Mazda dealerships have a "suggested route" for test driving? In the three dealerships I've been in (two in Winnipeg, MB and one in Leduc, AB), there's always been a poster on the showroom wall that maps out a course and points out where you would experience or test the specific attributes of the car i.e. freeway section, S-curves, on/off ramps, etc.. Just curious if this is a Mazda thing. And before someone says something, the only dealerships I've been in are Toyota, Lexus, Honda, and Mazda. I assume they do something similar at higher-end "driver-focused" dealerships like Audi or Jaguar.