If anyone want to get best mileage of new Alto which is costly car then there is cheapest option to install new R06A engine in Alto 2012 Chassis... (cheapest option I think, you can say with R06A engine probably)
and if want to get best mileage in some cost with almost new shape then purchase Japanese 2014 Alto , it looks like Pakistani New Alto 2025 etc...
(The second cheap option probably and loaded with many features
