Of the all non-existent things I can think of at this moment — armored parsnips, a horse that speaks fluent Dutch, soap with a pretzel center, and so on — I think the one I most regret never existing is a BMW van.
I started thinking about this because of rumors of a BMW people-mover floating around. The more I think about it, the stranger it is that BMW never produced a van of any sort. In fact, I think they may be the only mainstream auto maker to never have produced a van. Sure, there's smaller specialty makes like Morgan or Lamborghini that have never had vans sold under their marque, but I think of the higher-volume companies, BMW is unique in avoiding building motorized boxes. All their German brothers — Mercedes-Benz, Volkswagen, DKW/Auto-Union/Audi, they all made some sort of van, at least from the post-war era on.
There was a lot of demand for small delivery/passenger vans in Germany and all over Europe in the post-war era, especially in the periods of large economic growth in the '50s and '60s. That would have been the ideal time for BMW to introduce a competing van into the market. So why didn't they?
BMW certainly was no stranger to multiple areas of the market. BMW of the '50s and '60s was making everything from exotic, high-end cars like the 507, to the Neue Klasse cars for the middle, to the Isettas and 600s for the broke and adventurous. Factor in their status as a motorcycle manufacturer to add to their broad scope, and it makes no sense why BMW wouldn't have given a try to making a little van.