The Glanza mileage is 22.35 kmpl to 30.61 km/kg. The Automatic Petrol variant has a mileage of 22.94 kmpl. The Manual Petrol variant has a mileage of 22.35 kmpl. The Manual CNG variant has a mileage of 30.61 km/kg.
On road, with bengaluru traffic at its peak and AC always on (21 degrees auto climate control) i get anywhere between 16-19. This is my real world mileage