mcmaddy: My dad was giving the black some thought, I think the price was putting him off - he liked it but did he like it £500 more than he liked the red? I'll tell him the situation and see whether he wants to chance the possibility of a black one (for no extra) or stick with the red.
In a situation where my car turned up in the wrong colour, it would depend on the colour. If it turned up white I could live with it, but wouldn't be paying for the paint charge, likewise for black, possibly carbon grey. Any other colour and I would reject.