Cars Q&A

Why is Renault Kwid so light weight? The kerb weight of cars in the segment are Renault Kwid (699Kg) Maruthi Alto 800 LXi(720Kg) Tata GenX Nano XM(725Kg ) Datsun Go D(769Kg) Hyundai Eon D-Lite(715Kg) Chevrolet Spark(840Kg) Tata Tiago(930Kg) Does it mean in Kwid quality is compromised?It looks great,but is it reliable,safe in the long run.