You want a beemer in Central Java? Not many around. I've never even seen one in Java. For at least 2 reasons I wouldn't buy one. First, no one will be able to service it and if you need parts it will take forever to get them, and second because the roads aren't very good so it's a waste of a good car to drive it on those roads.
If you really must have one though, you might need to go buy it in Thailand or Malaysia and ship it over.