Austin pa ji,
The Japanese Alto's back seats are not comfortable at all (they seem more like a bench), and considering our social set up, you do need the back space for friends and family etc. Second, these are second-hand cars, so you you should also keep in mind the availability of engine spares as the car ages.
Cuore is a brand new car and would not give you any problems for at least 5 years if you maintain it properly.
As for the accessories, Cuore's steering is very soft & smooth, the driving position and the brakes are excellent, the transmission is mala'i--all in all, good value for money.
Do take a test drive in both the cars before you take the final decision. Good luck :). Do keep us posted with the developments.