The new Kamiq model are shown with what looks like a plastic exterior sill protector, apparently just stuck on to the lower edge of the sill

I'd like to have these fitted to my 2020 car; anyone know if these are available?

I noticed this when I bought my Kamiq, the cars in the showroom some had them others did not,

never got to the whys and wherefores, my car does have them (I think)

I suspect you're thinking of the Rough Road Package.