Hello Arjun, I have always felt the Tyre roll noise a bit too high for comfort. U never get the feelig of sitting isolated from the outside noise in ur car cabin. I think it is just the design and not much we can do about it. Even if we go to the service centre i am not sure if there is a parameter to measure that for a complaint...so im just going along with it..... AS for the vibration, we need to get it checked. Get a second opinion from an outside repair guy. Their might be a simple solution to that but serv centre guys will always make it look like big to make u shell out more cash eeeks....i saw ur post is from 2010....but since i have replied, lemme post it up....didd u get any solution to these isseus u mentioned above??