1) What car are u driving? - i10
2) U planning to use seat belts or isofix/latch? - seat belt only
3) Are u planning to have more than 1 child car seat at the car rear seats? - Not at this moment.
4) What are you priorities in sequence? 
Light weight. Safety. Comfortable.

Looking for convertible baby car seat for new born to 4 years old. Which model is good? Where to buy, any recommendation?