No numbers are set in stone right now, but they're pretty close to the Mazda6 numbers albeit slower because it's much heavier. And it, along with the Mazda6, will be getting the new 3.5L in '07. So I'd definitely sit out on this the first year.

2003 Mazda6s 3.0L MTX Webpage 2004 Mazda3s 2.3L ATX