First off, I agree that for backing up the Z is fine....not the rear quarter window blind spots suck. Then again I've just learned not to dart in and out of traffic. Now if you really want one here's my suggestion, get one of these mirrors:
"The 300ZX Turbo is a dance; it's a song; it's rolling, roaring automotive art. There is no color that doesn't suit it. There is no mood-lifting chemical substance it can't replace." - Automobile Magazine