Thanks all. That settles it for me - no tread rubbers or wing mounted sidelights.

although expensive I would go for PP Film, the 'subbies' who fit for the factory do a very good job (even did my headlamp lenses)
Tarka. came with PPF on the running boards.
It scuffs easily.
I had it replaced once, they need doing again.
I though about
I'm tempted to leave it off and use lots of polish.