How a car can be called a "Mini" when physically it is as large as a "Maxi" I do not know. Well not quite, but the current "Mini" is as high as a "Maxi" wider than a "Maxi" and marginally shorter. It also weighs 20% more. The Maxi has(had) far more usable interior space.
The Maxi was of course another parts bin special, poor Issigonis could never persuade the bean counters to let him design from scratch.