Maybe I'm going to a different mazdausa.com than you, but if you go there and click on Mazda 2, at the bottom of the main Mazda 2 page it says "SPECIAL OFFERS" and underneath that "0.0% APR for up to 60 MONTHS."
In fact, Mazda USA is offering the same deal on Mazda 3's, 5's and CX-9's as well.