Gasoline or diesel? That’s the question here.

Hello, I decided to buy a “new” car. however, I now have some questions regarding insurance/taxes and of course consumption. Well, I drive almost 17,000 km a year and am still a student of my profession. I currently have a vw polo 1.2 liter beniciner 54 ps build year 2005 and drive it now 3 years. well, I’m about to give it off now, because I’m sometimes already upset about its performance. therefore I want to have a new shot now. As already mentioned, I drive just under 17tkm a year and can’t do without a car. my driving method corresponds to that of a renter. well, what I wanted to say is just that I’m looking for a car with which I’m well served and the performance compared to the consumption is okay. basically I don’t want to have a chinese or japanese, but rather to keep the popular car trend or possibly audio. so I keep the grip on a golf or a3, even in the bathroom when I start to calculate everything. among these two models there are diesels or gasoline engines again and that’s exactly where fun starts. currently it’s the diesel that welcomes the gasoline price with open poor and whereas the diesel is more economical than the gasoline, but would that be worth it for me? apart from the model, whether vw or audio, the motors are almost the same and therefore it’s first to neglect which of the two I look at. basically I wouldn’t look at a 2.0 tdi 140 ps. no, although I could also look at the 1.9 tdi version. however, with the 2.0 tdi I actually get more power for the almost same consumption. I asked myself about the 2.0tdi audio bj 2005 with the insurance of my parents, in the 1st year I would have to half-yearly almost 450 euro sheets with 85% partikasko sb 150 euro. that would be almost 900 euro without taxes each year and spreed, if I count the rest I come to 2500 euro per year for the diesel version and 17tk m. well, I haven’t dealt with the gasoline yet, but would it be worthwhile to switch to diesel now or should I take the gasoline? well, set to golf 5 or a3 I haven’t got it yet. Greetings ps: corrects me when I’m talking crap.