I used Alto 2008 and now using Cuore 2007.
Cuore is far better then Alto interms of AC, Cng and Petrol Consumption, PICK, grip and Control and maintenance cost (as it rearely require any repairs.... Believe me.. Alto is nothing infront of Cuore. My Cuore give 155+ per cylinder within khi City without being tuned for months... And AC is rocking even at mild level and 1 or 2 degree....
It runs better in Cng as compared to Alto in petrol..
GO FOR CUORE