Originally Posted by
Looigi
I have senors in my helmet to detect stationary vehicles and which I use for guidance to move far enough away to prevent getting doored. They are called eyeballs and they are wired directly to my brain.
+1
The only real benefit for anything like this would be to detect stuff approaching from the rear - but due to speed &c. the best sensors here are again eyes (over shoulder or in a mirror) and ears.
This however opens up a new market, as an aid to people with impairments.