Real fuel consumption Seat Ateca through own experiences

Hello, I’m new here and unfortunately I haven’t found anything on this topic of real consumption yet. I’m close to buying an Atecas. However, I would like to know from you what consumption values you can achieve yourself with your purchased Atecas. I drive about 20000 km a year. Actually it would have to be a diesel. In this case probably the 2.0 TDI DSG 7-speed automatic with 150 hp. On the other hand, I would be away from the Diesel Inde m case of the gasoline engine 1.4 Eco TSI DSG-7-speed automatic with 150 hp. (my favorite) Some tests say that this gasoline engine consumes on average 6.8 l. The dealer himself speaks of rather 8 liters. That would be still good. But I can’t quite believe it. Please put in your real experiences here. Consumption downtown / consumption highway / consumption on average. Also gladly from the diesel engines. Thank you. Ischa