Hey there, it is interesting what you read, see the attached piece from this weeks issue of Autocar.
I can say from first hand experience that you lot in the UK are taking this pretty seriously. When I was travelling to Germany earlier this year to go to ZF and the meet, we attracted a lot of attention from the folks at boarder control. Each and every time we got pulled in and quite thoroughly searched.
When we queried the guys checking the car, it was as the article suggests, A8s are the car of choice for “criminals”. So are we by association criminals too

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Any of you travelling to the gathering in Germany would be well advised to have all of your documentation in place and in order and put aside an extra few mins at the ferry terminal for the inevitable stop and search.
You’ve been warned…