A car accessory is an item that can be added to a car to improve its functionality or appearance. An ALARM is a device that emits a loud sound when triggered, usually as a warning or deterrent. A RADIO is an electronic device used to receive and transmit audio signals. A hubcap is a decorative cover that fits over the wheel of a car. A bra is a protective covering for the front of a vehicle, usually made of fabric or leather. A HEATER is a device used to warm the interior of a car. A roofrack is a device attached to the roof of a car to carry items such as luggage or sports equipment. A sparetyre is an extra tyre kept in a car in case of a flat tyre.