I was putting on winter boots so I decided to snap pics of clean car for record.
What's not visible here is that brake rotors where wheel mounts has been painted to prevent corrosion. Very good attention to detail by Mazda. Rear wheel well has sound insulations.
Rear Diff with electronic to lock the clutch.
CX-3 Differential part number. Not sure if AWD JDM Mazda3 Axela has same part.
If I were to upgrade springs, I'd lower by 2" and get about 100% stronger springs paired with stiffer adjustable dampers.
Those crappy "Lowering Springs" with measly 30% stronger rates will bottom out the suspension and kill any dampers quickly.