S Class and maybe E Class, I get... I cannot see them making C classes without a 2 door option...
They have too many very similar models near the bottom of the range which compete and sell against each other : for example the A Class has some derivatives which , as saloons are very similar to the C Class ; likewise the 2 door A Class and C class coupes tread on each other’s toes .
There is definitely scope to weed out models which are similar to others .