i20, CO2 values with 136, tax and petrol costs and reasonable/timed purchase value

Hello everyone, I was relatively determined to get a 5000km run i20 with top equipment. EZ in 3/19 and demonstration vehicle. And that, I should write with it, although I actually heavy myself with an investment of 1000€ plus, because I do not know what the car market gives in 5 years. Whether we then buy something newer “modern” (without gasoline) and also, what then from about 12000 Invest then still hangs as a selling price. Of course a bit hypothetis ch, clear. Nevertheless important for the assessment of my situation (as I find it). On the potentially new car: Although the new Hyundai i20 has already met the 6dtemp standard in total. But, with its (84hp variant, 1.2l) 136g CO2 emissions (forerunners under 120?!) it will in the future be more subject to driving bans (even if this would not be a total neck strike) and will be significantly more taxed and thus to the already luxuriant petrol costs (which also increase significantly and with 6-6.5 Lite My question to you: Where is my classification possibly? Both the question about the high investment for a small person and the associated high maintenance costs (sprite and taxes of all kinds). And in general: About which period of the line-based use of gasoline do we probably talk here? Without knowing for sure? Several questions, thank you for many meaningful and useful answers!