I have some of the Wolfgang but it has been a long time since I used it. IIRC it looked pretty good but the durability doesn't stick out in my mind so it must not have been much above average.
The longest lasting tire dressing I have used is the Ultima Tire & Trim Guard Plus:
Ultima Tire & Trim Guard Plus | Automotive Bumper, Rubber, Plastic Trim Sealant
It is a bit expensive but I bought my bottle when they had a sale and it seems to last at least 8 weeks or more on my daily driver. The gloss will die down but the tire remains a nice black color.
I will agree with
VroomVroom about the Z-16; I've yet to see a tire dressing that looks better.
If you clean your tires well before the first use the durability seems to increase after more applications. That is what I use on my street rod and if I could only own one tire dressing it would be Z-16.
Yes, the Z-16 will last through some rain, but it is a water based dressing so don't expect miracles.
For almost all dressings I use an Eagle One tire swipe and apply one coat to all 4 tires. I then move the car a foot or two and apply a second coat and let it dry. Moving the car prevents you from having a dry spot on the bottom of the tire because it was next to the pavement.