Five Comet EV colours are on sale today: three single tones and two dual tones with a black roof. The Blackstorm Edition's black with red accents was a sixth, but MG no longer lists that edition.
Buy the base model Executive and Candy White is your one choice. The Excite and Excite FC add Aurora Silver and Starry Black, and the two dual tones are kept for the Exclusive and Exclusive FC, which offer five colours.
As for the Blackstorm Edition, it comes only in its own black finish with red accents. MG no longer shows it on its website, so check stock with your dealer.