I wouldn't call that a shed, more a curiosity of it's time. Hardly a tortoise either. If it really had a 2.7l turbo engine in the back, it must have been a hoot to drive.
Special needs ;-) what on earth does the owner see? and why on earth does the owner not see what we see? someone who owns a Mercedes should have more taste than that, unless the taste glands have been surgically removed?
Good Lord.... I'm not entirely sure what 'image' they're trying to represent there... some android/space or comic/video series that has passed me by. And what is that toilet seat doing on the bonnet? Nice to see they kept the roof bars. Fair play to them for ploughing their own furrow mind...
Could it be a Triumph TR7 or perhaps a Pontiac Fiero? Neither were great examples of quality design & engineering.