oh yes, it HAS been discussed here
but unfortunately I am not able to retrieve the old link. While Electrolux mega corp has been busy to buy up all kinds of brands worldwide (AEG, Whirlpool Europe, Singer Europe, Flymo mowers, Husqvarna and what have you), the market has split into Electrolux shelf brands (AEG, Progress or Sanitaire in the U.S.) the top-quality door-to-door vacs went into "Lux" (braided hoses, high precision hose connectors and all that).
Lux Europe seems to be a Switzerland based company now, continuing all the good stuff of "real" Luxes.
Here's the old vid again of the Lux Intelligence vac, one generation later than this D810/D820 machine shown in the pics. (Both are very good machines.)
There is no difference in "Sauber" (Aussi Luxes) or "Lux" (Euro Luxes) branded machines, if those of Gareths's failed on him, they probably had had a bad hair day. It is one and the same company. The power nozzle shown is made by Wesselwerks (exclusively for the Lux brand), the regular Wessel brush has this more roundish and flat appeal to it, we all have seen it before.
See the vid for the latest vac model "Intelligence" (which I've posted before in the older, non-retrievable "Sauber" thread back then, the video is in Italian).
Our German Lux site is:
http://www.lux.ag/
Still, it is all the same, my sister has got the D795, I have got the older Z325 and D770 and had had the D810 for a while. One brew, no second level derivates of all of these.
http://www.youtube.com/user/watcherTuber#p/a/u/0/3_goNqrhtzM