Now I'm a proud Copen owner I've been checking everything and there's something I didn't spot before - there are no rear wheel arch liners. I'm sure there should be - there's a ledge on the leading edge that's just asking for a layer of crud to build up on it. Luckily the arches aren't rusty, though I can't see any signs of where the liners would have been attached. I'd be grateful for any advice - should there be a single moulded insert, or does it come in sections? Is it a straightforward shape such that I could fabricate a replacement myself? Thanks!