I love the Road Sign feature. Test drove a Volvo that had it. It was amazing. Perhaps something for next years Alfa's!It is nice on our Volvo XC90 to have speed limit info available all the time on the instrument panel. They call it Road Sign Information (RSI) function and it uses the camera system in the rear view mirror housing to read the signs. It also does school zones and other signs. It’s pretty nifty and pretty accurate also. Other systems might work different. Some rely on GPS and extensive databases from companies like Speed Gauge, Drive Aware or Tom Tom.