ok - then 'permanent' might not have been the right word, LOL. maybe 'semi-permanent' or 'more durable' if there's a chance you want to remove it later.

Even soft touch trim from the factory will peel and rub off with time.

? ... then just use regular plasti-dip

its going to hard enough to take off anyway. If you go "curing" it with a 100 clear coats or something like that it will be going through hell getting it off.

You could try coating the whole exterior in Line-X / Rhino-Liner, but I bet that'd be one crazy safety hazard.