I just get a message from the blog of one of my friends, he said a car can be really used for 10 years, and the mileage is nearly 300,000 km. my god. the average per year is about to 30 km, a normal case.The car is Bora 1.8T AT from Das Auto.
Generally, you change your car per 5 years, if you take care for your car, 10 years maybe conservative.
Although I have no a car, it is useful information.