BCE or BMW Clubs Europa is the official umbrella organisation for all countries in Europe except for the Uk and all the Scandinavian countries.
It is now run on similar lines to our own Umbrella, BCEF.
Most years it runs what is called "The BCE Treffen". Treffen is German for meeting, and the BCE Treffen is just that - all the clubs in all the countries meet at a town somewhere in Europe and have a great time.
If you would like to attend a treffen, keep an eye on their WEBSITE