Accord and some BMWs Side View Mirror

[Bill in Houston]

Have you guys noticed the shape of the side view mirror (am I saying that right?) on newer Accords and some newer BMWs? I tried to upload some photos but couldn't find small enoguh photos. So please bear with me...

Usually, the front of the mirror is curved into a shape kind of like
L
or
<
if you were looking at the DRIVERS side mirror from outside the vehicle. So the bottom edge or maybe the middle pokes out the most.

BUT

The front of the Accords' mirror, if you look at it from the PASSENGER side, is shaped kind of like
7
with the top edge poking out further than the bottom.

Has anyone else seen that?

Why do you think they do it?

I'm guessing it's to reduce the size and turbulence of the A-pillar vortex? Do you think that it would improve gas mileage?