You really shouldn't be seeing the sides of your Supra in your side view mirrors anyway.
Stolen from another site...
Many of us learned to position the outside left and right side-view mirrors by adjusting them until you just view the side of the vehicle while sitting in the driver's seat. This method still leaves dangerous blind spots.
A method of adjusting outside mirrors that is becoming increasingly popular positions each mirror so that the driver does not view the side of the vehicle. This position allows a trailing vehicle to be observed immediately after its view is lost from the inside center rear-view mirror; assuming that this center mirror is properly adjusted.
To adjust the side-view mirrors properly, one moves slightly to the left and right of normal driving position, and adjusts the mirrors to just view the side of the vehicle. This can be accomplished by placing your head on the driver's window while adjusting the left side mirror, and by sitting in the center of the vehicle while adjusting the right side mirror.