Not That Great;

I have a New Hyundai Santro CNG. Driven 11000 km till now in 9 months. Honestly, the car is very underpowered. On petrol, it will give you 13km max in city and 17max on the highway. On CNG it will give you 22 max in the city and 26 max on the highway. All with Ac on. You won't enjoy driving this car at all coz the feel of the engine is worst and very laggy. When 4 people sit you will have to accelerate a lot to move ahead. The performance on 2nd gear is very bad and you can feel jerks in the engine. With AC on, No pick up at all in range of 10-30kmph with engine jerks. You have to wait 2-3 seconds to feel the pickup. Above 40 speed the car feels good. Comfort-wise I have no complaints as it is a very comfy car and suspensions are very good. Space is good. Interior quality is good.AC is not that great in summer season please note. I think you should test drive a car for at least 5km and then take a decision to buy this car.