It seems like a simple thing, but I have been so impressed with these mirrors that I wanted to give them some props in this forum.
When I transitioned from a sedan to a coupe, the one thing that I noticed right away was that the b-pillar in the coupe was right in my field of view when I looked over my shoulder to check the lane next to me. I felt that the visibility was much better in the sedan in that regard. In order to try to minimize the problem, I looked to the European Ashperical mirrors.
These mirrors give a much wider field of view than the mirrors that come with the car. In addition, there is a small section at the outermost part of the glass that has an even more convex surface to allow for an extremely wide, albeit distorted, field of view.
When you put these factors together, you have a mirror that makes a car that is right next to you visible in the mirror glass. Not only is there no blind spot, there is actually a very brief period of time when the front of the vehicle next to you is visible to your eye's peripheral vision while the rear of the car is actually still visible in the mirror. It literally gives you overlapping fields of view.
I can honestly say that as far as safety is concerned, this is by far the best $200 I've spent on my car.
Highly recommended!