Re: In the UK it isn't on sale yet.
It was on sale in UK. I suspect anyone how pre-ordered got their phones. Samsung stopped selling it before the official release date (sensible as it needed to narrow down the problem and also has lot of devices to replace).
I know that at least CPW sent text messages to their customers who they had supplied the Note 7.
Not it does not come with car charger.
Given it has USB-C, it would be logical to suspect something similar like the Anker incicent but Samsung seems to be of the opinion that fault is with the battery (they have more than supplier so probably one supplier or one batch has some issues).