I was not conecerned about that but on many forums I have read about paint protectors and people always apply them after a few months of new purchase. I am still wondering about it because I haven't used any paint protector yet. Please help me on applying it or about some best brands.

What do you mean by paint protector? Is it like a film or a spray on?

I think that it is a good idea to put that on your car... it'll help pro long the life of your paint. I'm not sure about any specific brands.