Full Instrumentation: Our cars have the same amount of gauges that the $144K Mercedes AMG SL 55 and a bunch of other sports cars have. Oil pressure and battery gauges used to be required when cars weren't nearly as reliable -- but are kind of pointless now.
Auto Dimmer on Mirror: I'd just turn it off -- but I do know folks who love this feature.
Compass: Nah. Got one on the stalk of my Red Rider BB Gun.
Outside Temp: Absolutely!
Dual, Temperature settable A/C: Like the idea of dual settings -- but auto A/C always drives me nuts. You can't control the fan speed, etc.
HomeLink: Yep. That and OnStar, too.
But then, 400HP makes up for a lot: Sure does!
The gauge pod install is a snap for 05 and 06 owners -- for 04 owners -- it is a real PITA. Check out this link, scroll toward the bottom, then download the installation manual. Interesting reading for 04 owners to say the least!
http://www.jhp.com.au/monaro-gto/gto-binnacle.php
Having a lot of that stuff would be cool -- but I don't think GM is making that much on GTOs as it is -- so anything that could easily be deleted got the axe. Would have been nice to at least have an interior upgrade option where all of that could have been available if you wanted it.