Eon is my first car, I have driven it for 14k kilometres, used it for 1.5 years, in one word it's the best car among its competitors.
Pros :
I have driven this car for 400 KMs continously with very short breaks in between the journey, I didn't had any issues with engine heating or tyre pressure issues.
I have driven at 140km/hr and couldn't see any shaking inside the cabin.
I am able to get 20 km / litre on high way and 12-13 km/lt in city.
Cons :
People sitting back can clearly feel the vibrations incase if the road is not good.
Poor build quality
For long journey only three people (Including driver) can travel comfortably