I have been toying around with the idea of making a replacement circuitboard for a Carrera digital chip. It would be for analog tracks and have the same plugs as the Carrera chip for the headlights and tail lights, so it would be a direct replacement. It would include a capacitor to keep the lights on even when the car has stopped after running enough to charge it and a functioning break light circuit.
Is there any interest in such an item? I may consider prototyping this of there is.