I use a Peli Air 1615 case.
Apart from being waterproof its lighter than a normal Peli case, it comes in different colours (mine is Silver, looks more light Grey). I pealed off the stickers (thought them a bit gaudy) and being plastic it meant I could stick some velcro to the top edge to fit my brake light, as it does obscure the Morgans. I don't seam to have taken any pictures of it on the car.
One link here but shop around.
https://www.waterproof-cases.co.uk/product/peli-1615-air-caseThey make different sizes, but larger ones tend to be Black only.
Just another option
