developed and standardised, for example CAN[1][2], J1850[3]. THE ELECTRONIC VEHICLE TODAYVHDL has been used to develop a simulator for automotive databus networks. This is a design tool for early assessment of system interactions. VHDL has proved ideal for this application due to the flexibility of modelling permitted by features such as generics and configurations. Analogue extensions to VHDL are eagerly awaited for extending the capabilities of the simulator. SUNROOF AIR-CONDITIONING WINDOWS DASHBOARD LIGHTS SECURITY SEATS DOORS IGNITION FUELLING NAVIGATION ANTI-LOCK BRAKING TRANSMISSION ENTERTAINMENT TYRE PRESSURE