Possibly buy A2, fare to 1.4 petrol

Since I’m looking for new used ones, the idiosyncratic A2 overn ran away, which I like so much and as I know it should be quite good! My question without being too annoying is whether the 1.4-series had the Euro 4 (will probably be important soon) and whether this is the same problem engine as from the VW shelf? Oh and what do you think are running speeds of 200tkm and more feasible? The car now has 75tkm and should be at least 4 years of service possibly also longer! what does it look like with spare parts (+prices), Audi has such a slight problem with expired models!?!?