Answer:
Some of the most expensive features in a car are:
Oversized wheels and Tires have become more and more common, particularly among luxury buyers.
Summer Tires, which despite being useful for specific driving conditions, all-season tires are good enough.
Four-Wheel Drives, despite being useful for specific driving conditions, require expensive repairs.
Performance Components, such as lower gas mileage, the maintenance schedule required, the cost of repairs
Built-In Navigation Systems are very expensive, and become obsolete rather quickly, in addition to being replaceable with a portable device
Step-by-step explanation:
Camera- and Sensor-Based Systems add safety and convenience, although they may require expensive repairs when located near the bumpers. This is the one I consider the most important because it provides better security when driving, and the possibility of repairs can be avoided by placing the cameras inside so they don´t brake.