I imagine that
some of the apparent queue jumping is due to the popularity, or lack thereof, of particular colours. Suppose the factory has 5 chip sets allocated for UK delivery... do they want to manufacture according to the strict time of ordering, or do they say "yeah whites are popular, let's make a batch of 5 whites". I imagine that the setup for paint colour change is horrendous, lots of wastage. So they try to minimise paint colour changes as much as possible. Or maybe they pick the colour based on the oldest outstanding order, and make the other 4 the same colour and possibly trim as well. That likely doesn't match the order for numbers 2-5 in the queue.
Maybe my figure of 5 is unrealistic, and maybe they make 50 or 500 at once with the same colour (likely the same colour is used in several markets), but the principle is the same.
Maybe we should have had a poll early on for the most popular colours and trims, and those that are more desperate for their cars might sacrifice colour and perhaps also trim (if finances permit of course) to make it more likely to get their cars sooner.
Or maybe I'm totally off base with this. ?