Do you expect to live to 100 years old? Maybe if you observed a clean lifestyle, ate good quality foods, exercised regularly, and sought preventative health check-ups with a trusted physician it would be expected that you could exceed the average life span of most people. The same is true for your car; take care of its appearance, feed it good quality fuel, drive it conservatively, and servicing it regularly at a trusted repair facility could yield a higher than average life span for your automobile.
When you are not feeling good, people can usually tell by your appearance. The same is true for your car; if it is dirty, damaged, or has missing parts could give other drivers the impression that you do not care about the health of your vehicle. Regularly cleaning, washing, and waxing your vehicle can help you spot possible issues relating to the health of your car. For instance, while cleaning a wheel you notice a clean spot on the rim where it would appear a balancing weight used to be. An un-balanced wheel can lead to irregular tire wear, accelerate suspension component wear, and poor ride quality. Because maintaining the health of your vehicle is important to you, you discovered this before it became an issue and caused any long term damage.