Automotive dashboard and method of fabricating a dashboard assembly comprising such a dashboard

The dashboard (5) has a shell (6) made of plastic material and integrated with wiring (17) of the electric system (16) for a number of instruments or controls; the shell (6) has an underside face (15) having at least one raceway (20) housing a corresponding bundle (18, 19) of electric cables (25); the raceway (20) may be defined by a hollow section (21, 24) fixed permanently to the underside face (15) of the shell (6), or may be formed in one piece with the shell (6) by means of two projecting tabs (32, 33) defining a channel (34) closed by a removable wall (36); the dashboard (5) is produced and the various electric/electronic components on the shell (6) are tested off the vehicle assembly line.