What is the mileage of Audi A6 2015-2019 on highways and City?

Audi A6  gives a mileage of 13.33 Kmpl and 17.68 Kmpl in city and highway respectively, with its diesel powermill. On the other hand with the 2.0 litre TFSI it gives mileage of around 10-15 kmpl according to the driving situations.