
Originally Posted by
AG4
Between your three choices, the ones that offer the better power to weight ratio would be the G4 1.2 and Vios 1.3J.
There are times, when smaller is not always better for fuel efficiency, specially if the body of the car is heavy.
Mirage G4 1.2 MT
Power: 78PS
Torque: 100Nm
Weight: 870kg
Vios 1.3J MT
Power: 86PS
Torque: 122Nm
Weight: 1025kg (est)
Rio 1.2 sedan MT
Power: 87PS
Torque: 120Nm
Weight: 1161kg (est)
The Rio 1.2 sedan is quite heavy for a 1.2 liter car and unlike the other two cars, the Rio 1.2 does not offer modern safety features like airbags.
The car with less torque and poorer power to weight ratio will most likely be more sensitive to load changes. For example, if you have 4-5 passengers on board (specially if you are going uphill), the drop in performance and fuel efficiency could be greater than that of a car with a better power to weight ratio.