I don’t need research other than the one I can do myself where it allows me to see cars in my blind spots that I can’t see otherwise. With a normal mirror watc

I don’t need research other than the one I can do myself where it allows me to see cars in my blind spots that I can’t see otherwise. With a normal mirror watch a car pass you and watch it disappear for a bit before it is visible in your window. The blind spot mirrors show you a car is there all the way until it is past you.