There are quite a few differences between the USA spec Mazdaspeed6 and the OZ spec MPS6, we don't have headlight washers, those fender side-markers, and I think your radio antennas are in the rear windshield.
I don't know if there are any power differences, because of damn emissions laws, but our version is rated at 271hp 280ft/lbs from the factory. I think the euro versions have only 256hp? What are the Australian MSP6's rated at?
Anyway here are some pics of my toy, it's pretty much stock. The M030 parts were an option, that I installed on the car. Better suspension, koni shocks, ridiculously large sway bars, and slightly better brakes. I'm 95% done with my engine rebuild on it, but I have not driven it since I bought my MS6. I have no idea which is quicker, but they feel very much alike in many ways.