How to find out whether your car has been treated with teflon coating?

Q1. I have recently in January purchased a Volkswagen Vento. Its a sedan. I stay in Delhi, India. The color of my car is red. I was told that my car has been treated with teflon coating from outside. However I have a serious doubt as to whether teflon coating infact has been done. Is there any foolproof way to find out whether teflon coating has been done on my car or not. The usual method that the car will have a slippery outer surface is misleading as that can happen even with wax polish.

Q2. Is there a need to do teflon coating on a brand new car? Is it necessary for solid colors like red?