A vehicle with an average mileage of 10T km/yr is, well, the average. So when your vehicle only travels less than that is considered low mileage car. Considering that the TOTL Wigo costs Php 534K only as compared to the Mirage at Php 648K, the Php 114K difference is already worth a lot of gas and will take you to lots of places. I would even guess that you can't consume all that money in gas in just a year. Add to that the PMS cost of a Mirage over the Wigo. So I say, get your priorities straight, and think about what you really want and/or need.

Less fuel consumed is always good? I wouldn't say yes, especially if the price difference is too high and I won't be making the vehicle a high miler to break even with the cost.

I am surprised you wanted some oomph but you're looking at subcompacts. Don't expect too much from them, as they are built for economical driving. And economical driving's a different world with the oomph you're looking for. Closest that you can get is the Fiesta Ecoboost, but that's on a different class already.

Anyway, in the end, it all boils down to your priorities. Good luck in finding the right vehicle for you and don't forget to enjoy.