Embodiments of the present invention provide a display method for use in a vehicle, comprising obtaining information associated with a vehicle or external image data of a region proximal to the vehicle, and displaying, on a display device worn by an occupant of the vehicle, one or more of a graphical representation of at least one component of the vehicle having one or more characteristics based on the information associated with the vehicle, or a representation of the external image data, wherein the one or more displayed representation is arranged to overlie a portion of the vehicle to be indicative of a portion of the vehicle being at least partly transparent.