Came across some information in the Kodiaq forum: the demise of Corrado Red. I checked the UK Superb configurator and it has indeed been removed without being replaced by an alternative.
It would appear people who pre-ordered the Kodiaq in Corrado Red have been contacted to choose an alternative colour.
It might affect those still waiting for their red Superbs to be built.
I'd heard rumours that Petrol/Lava Blue might be on the way out soon, but the only available red going