A few examples would explain the whole point pretty easily. Take the case of car mats. In spite of the fact that they provide extremely important service to the cars yet they are not taken that seriously by people. Imagine a part of the car that saves it from dust and rain and provides cushion to feet thereby making the journey comfortable is not given its rightful due. Nothing can be as baffling!
Similar is the case with spare parts. Such integral car parts but again not given as much attention as is their right. There are times on several occasions when you cannot get the proper silencer or combustion pipes etc. and have to wait for days for them to arrive to get the short coming fixed. Had a careful attention been given to these essential components then situation would not have deteriorated that much.
These points should communicate the point pretty nicely that a careful observation to car accessories or car parts while purchasing cars would go a long way in helping people combat such critical times. All that you need to do is to pay slight attention to these essential components to give that edge to your car.