Q. Which car is much efficient in budget of sub 6.5 lakh, Grand i10 Sportz or Swift LXi?

Grand i10 for its features inside the car which is surely missing in swift LXi. if u just want a car without any features, then go for swift , later on shell out more money to add accessories.

Swift lxi is basic model no any features but in sportz grand i10 AC, power steering inbuilt audio system is available

U should go for grand i10.