It has been back to the garage 4 times due to corrosion problems.
This car is 2 years old...... Mazda give a 6 year anti-corrosion warranty....... this does not sound like quality.
If I wanted a rusty old banger I would have bought one.
If you have a MkII check where the boot closes, (rubber foot), under the clear plastic sticker where the rear number plate lights are (drainage holes), and under the rubber door seal - both sides - bottom corner.
All are design problems.
The engine/interior/hood etc. are great.
It was rusting away within 2 years - it was a bad buy.
Rust is a common fault with early models and wheels can corrode as well.
Usually though, it's under warranty and so is fixed FOC.