[vinaydas]

well don't judge a service by the accessories they sell.
in Bangalore Ravindu Toyota has an Independent accessories department and not related to the main service.
Most probably shinrai has a independent accessories department.
And most people recommend not buying anything from a showroom except the car of course.
the accessories are sold with a heavy premium.Your polish thingy. I think you have gone in for the Teflon coating. As most people don't see any difference before and after the finish.