Hmmm, the Mazda3 Sport was not sold here in the U.S.; which engine is in your car and what is the trim level of the interior?
My Mazda3 is from the UK and it's the hatchback version. It's a 2.0L Petrol manual which produces around 150bhp. I'm pretty sure the trim level is just called sport here in the UK. Either way, it has the leather seats and Bose sound system.