I've no information that I can include here s the Weinsberg site includes no company information or background history about the company in plain text form - must be a b*gger for search engines.
Weinsberg’s current models include:
Alcove - Orbiter Alcove Beginner and Meteor Alcove premium.
Semi-integrated - Imperial S Semi-integrated beginner and Imperial Semi-integrated premium.
Van - Imperial V, 491 DQ, 601 ME, and 601 DQ
Compact Bus - Cosmos, 501 U, 541 V, 601 K, 601 MK, 601 MU, 601 MQ, and 601 MQ GE.
There is also a Weinsberg Scot model with various options including the Model Am and Model T.