Sorry but I disagree with some of the posters..in a friendly way..
I have adjusted the mirrors as suggested and yes you can improve things but.. there are still blind spots..
The driver side mirror angle is not wide enough to see all possible vehicles approaching on the left out of view of the main rear view mirror. For example, You cant see a car two lanes over on your left and slightly beside you and possibly crossing over into your lane..especially if you are on an access road entering a main road..which increases the angle needed to see it...or even a car close behind and on the left even one lane over..And if you do adjust your side view to cover that vehicle you will find a big blind spot to the left and slightly behind at less an angle...
and dont even mention what happens when you stop at a crossing when another road intersects at a an angle much less than 90 degrees...and you cant see down the road through the windshield...that is a really tough situation ..
and check this out Notice the cons..
http://www.edmunds.com/nissan/370z/2012/
I know these are extreme situations but a simple small flat mirror attached to the side ones would greatly improve the situation..so where can I buy one? I am thinking I might have to get a mirror and cut it myself and paste it inside one of those convex side mirrors they sell for about 3 bucks.. the ones that glue to the mirror..