Vibhor, you are correct in your conclusion about Linea. It is indeed better looking in its segment, even 2 segment above.
Regarding door pull lever, I am not sure, in my Punto (Emotion) its made of steel. One thing I will tell you, some of the plastics, like boot release lever, fuel opener lever etc does look weak, but all of them have metal inside and its quite strong. I never had any issue with any of them till now.