I have been researching on internet since last 2 days trying to find myself a head up display (HUD) unit for my 2016 vehicle that will also alert me of road speed limit. Found heaps of HUDs with speed alarm system where 'you' need to set a speed limit which is not very useful as we have variety of speed limits on various roads. I found one of Polaris which alerts the driver with speed camera and red light camera which is awesome but still lacks the road speed warning feature.
Am I asking for too much from a non-intelligent HUD unit which is meant to just project the vehicle speed on the windscreen? Please suggest if there is something like this in the market or I should patent this idea? :)
Some cars have this feature built into them.