Cultus is 1000cc, its more spacious, and atleast better than alto in terms of suspension and drive comfort.
Resale value of Cultus is very good.
Fuel consumption 13-16 depends on its efi or carby, & how you will drive it..... CNG consumption is good on both efi & carby.
My brother in law has 7 mdl non-efi cultus. He is getting quite excellent avg. On CNG. HIS ROUTE is rwp to village via GT road approx 180km each side