Having just bought a Kampa rally Air Pro, I was a tad disappointed to find that although it came with a black draught skirt, Kampa do not include a wheel arch cover in black. In fact they dont include one at all. For those of you with the same issue, it appears Bradcot do a black draught skirt and a seperate wheel arch cover to match.
http://www.bradcot-awnings.co.uk/index.php/awning-shop/spare-parts/general-spares/wheel-cover-black-1.html
http://www.bradcot-awnings.co.uk/index.php/awning-shop/spare-parts/general-spares/wheel-cover-black-1.html