Insulation , suspension and lights should be improved

1. Car overall performance is good. 2. Mileage 12 in city and 15 on Highway with 80km max. 3. Suspension - could have been better. 4. Insulation is poor. We can hear noise inside the car while using on Highway and cement roads. 5. Suzuki should provide 16 inch wheels instead of 15. 6. Lights are halogen, instead LED should be provided.