Thank you thank you thank you. I've used Rain-X on auto windows for the longest time but was completely unaware that they had formulated a silicone wax suitable for hydrocarbon based plastic.
This could be used on the Morgan, on poly-carbonate lenses, motorcycle helmet lenses and the like!
Turn signals!
Headlamps with poly-carbonate lenses like my JW Speaker LED lamps!
It boggles the imagination!
I'm agog