Hello, I'm looking at purchasing a A6 Avant 40TDI Black Edition (Tech) but I can't decide what would be the most useful. We do a lot of motorway driving, trips to Europe etc and the rest is around town. The comfort & sound pack has the 360 camera and keyless entry which we have at the moment in our current car and find very useful. But the tour pack has adaptive cruise control which is very good for motorway driving. I can't afford both, unfortunately! Would very much appreciate any advice on which pack to get if anyone has first-hand experience with either that would be great. Many thanks in advance.