I don’t know why but Black and Grey seem to be really popular colours............ I would never buy a black car, they are just so much hassle to keep looking good (and they are the colour that really only funeral directors would like....) The other thing with some of the grey shades is they are almost a perfect match to the plastic trims on wheel arches and bumpers and JLR’s Stornoway Grey and Corris Grey exactly matched the plastic trim bits so you got colour coding from the factory for free!
Must admit that I have owned a few metallic grey cars over the years for exactly the opposite reason why I won’t have a black one - they don’t show the road dirt for weeks and weeks. Reds fade too much even today and blue and green seem to be out of favour (I you look at Land Rovers configurator for the Evoque , Range Rover and Range Rover Sport there are white, metallic red, black or about 8 different shades of grey unless you start paying £3500 to £7000 extra for a “premium” metallic yet Jaguar (same company AND some of the cars are built on the Land Rover lines at Solihull) offers blues and greens. My Defender is a dark metallic green. My PHEV is Melting Silver, which isn’t silver at all, it’s more a very pale willowy green!