So much choice- WELL Megane?

My first post here, please don’t kill right away, my car knowledge is limited. After testing some combinations of different manufacturers, my heart is stuck on a megane – regardless of the appearance, the way of driving, the equipment or the general gut feeling. However, I can’t quite choose WELCHEN because now, because all the names and submodels confuse me. In the end, I could narrow it down into the following line: Renault Megane Grandtour Bose Edition ENERGY dCi 130 (built in 2014 and up) Now to the questions: – What does this “ENERGY” have to say? Less fuel consumption? Visually, I could not notice anything or did I miss something? – I am very pleased with the panoramic roof, but only read about it on the web. Is there experience? – 110 or 130 HP? Again and again I read from people who were supposed to have bought the 110 and wanted to have fetched something more afterwards. Does this work out strongly in fuel consumption? Is there a noticeable difference? – What do you think I’m going to drive around 25,000km a year – how does the car last for the long term? – Other things I should know you didn’t think of? (I’m going to buy a used car, something else I have to pay attention to?) Greetings