anti-glare/auto-dimming mirrors?
 

I find it irritating when a truck is tailing me and his headlights are in my eyes.
Are there any anti-glare mirrors for S2000's?

i also looked at a couple of auto-dimming mirrors online and they want 12V power. how do we provide that since the mirrors are attached to the windshield?

You've got to get creative. Put an "H" emblem up there and use it to hide the wires. I'm just trying to give an example, as many people may not like my idea. Or just get a stack of pennies and master the art of "flicking" them up with your thumb.
Good luck, and let us know...
ps. I know someone on this board has done it.

There is a little tab under the mirror that is designed specifically for dealing with the problem you're having.

Another option is adjusting the mirror so it points back into the other drivers eyes.

Well the interior lights are also in the windshield. You can see if you can tap that for power.

You can also get the Level or spoon blue tinted side mirrors if you annoyed by glare on the side mirrors too.