Consumption Kia picanto ???

Dear forum participants, I intend to buy a economical car and have come across the Kia picanto. Unfortunately, the consumption values are not attractive. If I read about a consumption of 6 l, I am quite disappointed, because with my old Nissan Micra in the mix I do not get above 5.5 l. there are more economical cars (C1, Peugeot 107, Toyota aygo) The technology seems to have not got any further in this respect or the customers are not so interested in e in their low fuel consumption. I would be very interested in how much liters the diesel engine of the Kias consumes? I would be pleased about your contributions!