congratulations on buying a lovely clean C-class. by far it is probably the cleanest one i have seen in a long time.
do note that "sport" meant that it is the base model, not that it has anything sporty about it. it was a marketing strategy to call the base model a sport, the real sport versino is the avantgarde,.. still whatever it is this is one seriously clean car and i think it's a good thing that you kept looking for a car like this rather than buying all the junk available in PK.
i've also seen many C-classes for my friends recently and almost all have been absolute garbage,.. this one is a keeper. congratualtions once again.