I've owned my 2007 Holden Astra since new and it has done 56,000km. Could you please advise if it would be wise or appropriate to replace the front brake pads, disc rotors or timing belt to avoid future problems? I have not experienced any problems with the handling of the car.
Your local brake specialist can advise on the amount of wear but with so few kilometres in that time you could be fine. The owner's manual will give you the answer on the timing belt but look at the time and not the number of kilometres covered as belts deteriorate even with little driving.