Seat Leon ST -> which motorization? (Ecomotive or 2.0 TDI)

Hello, I have now decided to buy a Seat Leon ST. Currently I get more than 29% discount on the list price – I almost have to hit it. However, I fluctuate a little regarding the motorization. So far (due to the low consumption / maintenance costs) I have thought about the 1.6 TDI Ecomotive. Something is pushing me to the 2.0 TDI. (You can also find so little information about the 1.6 TDI Ecomotive). Which motorization would you choose and why?