Mini does not build many cars like the Mini Wildgoose: a Campervan with 848 cc, made in small numbers.
The story
The Mini Wildgoose was a motorhome based on a Mini. It was particularly designed for the "retired couple" and was believed to reach speeds of 70 mph (112 km/h) but a cruising speed of 50 mph (80 km/h) was probably more realistic.
The Mini Wildgoose was produced in limited numbers by a company in Sussex in the South of England during the 1960s. For the vehicle a BMC Mini van was needed and then a conversion kit which cost either £445, £480 or £601. It was, at least in theory, also possible to buy the complete vehicle with conversion completed.
What is underneath
Under the skin sits 848 cc. The layout matters: the engine drives the front wheels, the packaging choice that gives a small car a big cabin. These are manufacturer figures carried by Wikipedia and Wikidata, not road-test measurements.
Its place in the line
Where it sits in Mini's history is not in doubt: it was built at Worthing, Sussex, England. Nearby in the Mini catalogue sit the MINI Beachcomber and the Mini (3rd Generation).
Mini1959
Mini1969
Mini (3rd Generation)
Mini (MkI)