I initially thought you had a choice of interior colour on the EX grade but the dealer informed me that, although a lighter interior is available on EX grade, the actual interior colour on the EX is dependent on the exterior colour choice.
I therefore decided on red, to get the darker interior, which I thought would be more serviceable.
Maybe the dealer was trying to sell me a model he had in stock but the website configurator appears to support what they stated; it advises you that the chosen interior colour isn't available when you change the exterior colour to an unavailable pairing.
Has anyone been able to have free choice on the EX grade paint/interior trim options, e.g. grey paint with the darker interior?