I have seen a few R's now round my way and they do look smart but what i would say is when you see one in lapis blue then you know for certain its an R, when you see one in black, if its coming towards you then they can be difficult to spot. From behind obviously the quad pipes give it away.
The other problem is the quality of the paintwork. Lapis blue and black would be my first two choices but the paint swirls would frustrate the hell out of me