The number 6 plug wire burns once a year.
The first three years replaced the alternator 3 times.
The Dexcool II Antifreeze (?) turned to gunk at 60,000 miles.
The daytime driving lights shorted because water could get in, but not get out.
The window seal leaks under high water pressure.
Headlight sticking in the standard Fbody wink position (one stuck open).
Given all of the above. I must say that I love my car!
To address the above mentioned problems :
#6 plug wire - My mechanic (when I don't do it myself) changed the routing of the wire to be away from the exhaust manifold and so far it seems to be working well.
Dex-cool II - JUNK! - had it removed, the radiator rodded out and completely flushed. Now running the good old "green stuff" - no problems!
Daytime driving light shorts - drilled a drain hole on the light housings - no problems since.
Window Seal leaks - I stay away from high pressure water.
Headlight motor problems - There is a nylon gear inside of the headlight motor. This gear connects to a metal gear... (the nylon wears out, Duh!).
Replaced the nylon gear with CNC machined brass gears (available on the web) at a cost of about $40 each motor (A replacement motor runs about $150.)
I have had absolutely no problems since)
From a performance perspective it needed some tweaking and tuning in the airflow area. The addition of an SLP Cold Air Induction and a FlowMaster exhaust REALLY added to the Seat-Of-The-Pants kick that this car has.
I drive my car hard and fast all of the time (it is my daily driver). I maintain it meticulously (pure synthetic oil and high grade filters).
When the engine and/or tranny finally let go, I will put either a short-block 350 or an LT1 in it and just keep going.
This is simply the best car I have ever owned!!!