Car makers need cars to last for a while. That someone can trade in their 3 year old car means and there is value means that someone can afford to spend more on the new car they are buying. However they also need old cars that the poorest drive to die eventually so that there is someone all the way down looking for a different car once in a while.
Many of the parts of the car are bought from a third party who gives a discount to the OEM because they can sell replacement parts later. (put my alternator in your car, and when it wears out in 5-10 years they will buy a new one from me)
Many of the parts of the car are bought from a third party who gives a discount to the OEM because they can sell replacement parts later. (put my alternator in your car, and when it wears out in 5-10 years they will buy a new one from me)