We love our cars. They are cool, fun, and useful. The automotive industry has developed over the past century, and technology has launched vehicle development towards phenomenal safety and performance advances. Modern cars are certainly engineering marvels, and have greatly improved over the years but they are still imperfect machines, developed by humans, and contain a number of moving parts.
All of these different moving parts and technologies melded into a vehicle create the need for general maintenance and care. Treat your car well, and it will do the same for you!