He will be replaced by Martin Winterkorn , the head of the Audi division at the end of the year .
Martin Winterkorn /business/person/company Audi
PRP MD VB VBN IN NNP NNP , DT NN IN DT NNP NN IN DT NN IN DT NN .
Martin Winterkorn
PERSON
Audi
ORGANIZATION
/business/person/company