Much better if you opt for the Sentra GS (1.6L AT) model. It has better safety features (airbags, all-disc brakes with ABS, auto climate control aircon, leather seats, rear sensors, etc) compared to the GX 1.3L AT. Not much difference in fuel consumption (FC) as the N16 chassis of the Sentra is a bit heavy so a bigger engine is better suited for it.