The car seen in these pics is a test mule for the ground-up re-design of the Mazda3, which will be built on the same platform as Ford's next Focus. That's the Focus that we will see as a locally manufactured car in 2010 or thereabouts.
According to our determined and persistent spy photographers at Carparazzi, the next Mazda3 will adopt the corporate look of the new Mazda6 (more here) and will be wider and possibly longer than the current car.
Attacking the RIM bumper covers at front and rear on the test mule appears to allow for a different cooling system and revised exhaust system layout, according to the Carparazzi blokes.
Word on the grapevine is that the current 2.0-litre engine will continue with some changes leading to improved power and the current 2.3-litre engine will grow to 2.5 litres, as is the case with the Mazda6.
It's unsubstantiated at this stage, but there's the possibility that both engines will adopt direct injection induction systems for improved economy and reduced emissions.
-- with Carparazzi