color. My '90 TT is aztec red (original paint) and looks pretty good, and this wax in general makes reds look amazing. It protects relatively well (I have no oxidation when I completely strip the wax every 12 months), but is also easy to tell when it is time for reapplication due to the loss of some water beads. Application/removal is very fast. You would probably be happy if you applied it every 3 months or so (especially in the summer). If you want maximum protection, I would recommend going with Blackfire All Finish Paint Protection. It is a polymer that protects second to none.
I have plenty of pinnacle souveran- let me know if you would like to borrow it for a "trial run."