Sir I have observed these things. That's why I'm saying.
I have bought a brand new swift DLX for my sister. Rear seats aren't much comfortable. Swift is no matter fun to drive. But i think paying above 11.50 lacks for this car is totally not fair.
Idsi is far more comfortable and fuel economical and drive is also very smooth.
Regarding observation of doors. I have checked it by myself and felt the difference.