An interior equipment of a vehicle comprises: a flap component covering an airbag module and configured for opening when the airbag is deployed, wherein the flap component comprises a hinge; and a support material attached to at least a border region of the flap component and extending across the hinge. The support material includes at least one conductive fiber extending across the support material and connected to terminals of a power source to pass current through the at least one conductive fiber for heating the support material. Further, the support material is arranged to heat a surface of an interior trim part which is located adjacent to the interior equipment or is part of the interior equipment.

A heater device includes a heater surface facing one side in a predetermined direction. The heater device includes a transmission electrode and a reception electrode arranged on the other side in the predetermined direction with respect to the heater surface, and an insulation coating layer that covers the transmission electrode and the reception electrode on the one side in the predetermined direction. The transmission electrode and the reception electrode are electrically connected to a contact detection unit, to detect contact or proximity of an object to the heater surface by a change in a capacitance therebetween. The insulation coating layer has a first component part made of an insulating member, and a second component part having a smaller relative permittivity than that of the first component part. The second component part is located between at least one of the transmission electrode or the reception electrode and the heater surface.

A composite roof panel of a vehicle disposed vertically above a passenger cabin of the vehicle includes: a first one or more layers of carbon fiber; a second one or more layers of carbon fiber; a binder material configured to bind the first and second one or more layers of carbon fiber; first and second electrical conductors that are: disposed between the first one or more layers of carbon fiber and the second one or more layers of carbon fiber; configured to be selectively electrically connected to a battery of the vehicle; and electrically connected to at least one of the first and second one or more layers of carbon fiber.