Rear lights off. No gunge but a bit of dust and spider webs! Seems very dry under light clusters. I see the white clips have a rubber washer...one has deteriorated.
Anywhere else that water can get in there?
All out.
Little puddles in both rear corner recesses under little corner pockets. Pushed out a grommet to release water.
Presume is a rear light cluster out to clean water channels?
Old age can also be a problem when you accelerate in a fast car! In my GS450h I floored it and the g force hurt my back.
I think 300bhp is enough for us old folk.