Buying from Passat Gasoline or Diesel?

Hello VW ́ler, I decided to buy a Passat Variant again after I have had enough of the course in my golf convertible. Is a very good car of the golf but for me simply too small. That’s why I mourn my 35i very much. But now it should be something more modern, thought of the newer model (I believe from 8/97???). Now I ask myself the question if a diesel with my driving performance of approx. 15000km/year is calculated. I am at the very best between the engines 101PS petrol, 90PS or 110PS diesel. I think the 101PS would certainly be sufficient but what about the engine’s pull-through and the consumption and what exactly does it fills up? Petrol, Super or Super Plus??? 90 Diesel PS are certainly a little weak on the chest, please tell me your experiences with the engine and the consumption. Then the 110PS diesel, also here the question about the pull-through and consumption. I would be very happy if you would give me my decision g could help a little. Thank you very much already Gruss Sascha