studegard, I've alluded to a paint option that I believe is a great match to the original color (better than the other previously discussed easily available solutions), but I have to this point been clearly a little elusive, and for that I apologize.
The reason for that elusiveness is I started messing around with this last fall and I ran out of warm painting weather before I had finalized my testing. I have spray samples that look great, but I didn't want to loose my findings on the Z community until I was closer to 100% confident in the results.
My plan is to paint one of my taillight panels and then re-install it in the car along with the original panel which still retains the original factory finish. If after that test, it looks as good as I had hoped in several different lighting conditions, I'll pull the pin on the rest of the info I have.
Unfortunately that won't be until sometime in the spring after it gets warmer. If you want to give it a try yourself, send me a PM and I'd be happy to fill you in on what I've tried. Maybe you can give it a shot too and provide a review using a second set of eyes.