Tail refers to the rear end of a vehicle. The tail of a car typically consists of the bumper, lights, and the trunk or hatchback door. The tail serves both functional and aesthetic purposes, including protecting the rear of the vehicle in case of a collision, providing illumination to improve visibility, and contributing to the overall design and style of the car. The tail design can vary greatly among different types of vehicles and is often used as a way to differentiate models and brands.