http://www.mazdausa.com/MusaWeb/displayPage.action?pageParameter=modelsSpecsSpecs&vehicleCode=PR5
Look under Chassis, Body Type. It says 5 door hatchback.
I come from the old school car enthusiasts and here is my take on this (from my experience with vintage cars):
A wagon is a car that can be based on a sedan, but usually has a longer wheelbase than a sedan. If there is a sedan that it is based off of, the wagon must be longer than the sedan. Else, it is just a hatch because the only thing about the body that has changed is the fact that the maker added a 5th door (hatch).
The Protege wheelbase is 102.8 inches and the Protege5 wheelbase is (yep--u guesed it!) 102.8 inches. Regardless of the body length and front fascia being different, the chassis is still the same. Therefore it is a hatchback because only a 5th door has been added.
And at the same time, Subaru calls their WRX 5th door a wagon. Their WRX sedan and WRX wagon have the same wheelbase size.
Industry standards and termanology change with the changing times. I think it's all about marketing. I remember when kids used to think the Honda hatches were kool when they first came out. The term hatch had a sense of "cool factor" associated with it. Station wagons had been out for decades and were never thought of as cool, just a your plain jane family car.
Now that companies such as Subaru are labeling their 5th door vehicles as wagons, the term wagon has taken on a new kool meaning. So, it's not really a bad thing anymore. or-moreover, a "wagon" is considered to be kool, but then when one is referring to a crappy old ford LTD wagon, they call it a "station wagon".
The terms "wagon" and "station wagon" are slowly gaining separate identities.
My friends still like to call my Pro5 a wagon, so I let em. As long as I know that they mean is that my car is kool.
