I don't think horses have the ability to drive a vehicle, so I'm going to guess zero.
2.0L 148hp 2.3L 156hp
need to kno what engine
Here are specifications for all the '07 MAZDA3s available in the U.S.: http://www.cargurus.com/Cars/2007-Mazda-MAZDA3-Specs-c7344 Hope that helps!
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