I was looking for the gearing for the Mazda3 and I managed to find it. On the Mazda Canadia website.
Mazda3 gearing including the new Skyactiv 6spds
Those engines are just part of the mixture, besides the aerodynamics tweaks, and the special exhaust, they also put taller gearing in the MANUAL gearbox! Of all things. The auto is still a whopping 23% taller but still. At least they put a decent gear in it. With the 205/55/16 tires that means 2200RPM @ 60mph.