purchase advice seat leon 1.4 TSI

hello, I’m thinking about a new seat leon 1.4 tsi. can someone tell me why the sport limited in the equipment line costs only 300 euro more than the 1.6liter engine, in the variant comfort but 1,400 ????? Is only the engine surcharge!? 300 also seems to me a little extra price for a more powerful motor with less consumption!? Can someone enlighten me? Then I still need a tip if n new car is worth it. alternatively, I would be used (not the seat leon configured by me comes to 20-22.000. advantages: wish configuration, new car (is yes generally something “better”, less reperature costs (with full service seat quite exactly no, even HU etc. is in there), I have to finance, so less interest plus dealer discount. the seat leon 1.4 TSI is virtually not needed yet. after all: more loss of value now, you only have to see the difference of the value loss and with the whole financial advantages would not have to make a lot of difference at the end of the sale after 4-6 years after all, or? of course you pay more overall, but I think it would be almost justified, for then you have a new car? Can this really be assessed badly…