This is an addition to the passenger side mirror for locales that do left-side driving with left-side drive cars. That puts you next to the left shoulder on the left side of the road with virtually no way to see if you can pass, even when it’s legal to do so.
The Ultimate Safety Mirror to Prevent
Head-On Collisions adds a passenger-side mirror with a larger front-facing mirror that gives the left-side driver a clear view of the oncoming traffic in the opposing, right lane.
In addition there’s a lighting system that warns the oncoming traffic that you are pulling into their lane before you can see that lane directly.
The converse is true as well: right-side drive cars on right-side drive roads can mount one on their passenger-side mirror to get a bit earlier notice that they will be flattened by the cement truck if they pull out. Optionally, you can get one that comes with a scissor mount that extends the mirror another 18” to improve the view.
Should be about $50. Of course, this is much too simple and will be replaced almost immediately by 16-megapixel cameras studded all over the body of the vehicle and a computer that automatically edits your trips and records serious offenders for posterity. Should be about $1100.