Just purchased an '07 GTI yesterday -- Black, package #2, 17" wheels, automatic. the "Service Manager" gave me a tremendously long pitch (accompanied by a glossy binder with pretty pictures) of all the aftermarket stuff I should "really consider" for my new vehicle -- e.g., undercoating, clearcoating, extended warranty, interior upholstery protection, etc. I didn't buy any of it because I wanted to get the straight scoop from real GTI owners. So, what say you all --- What kind of aftermarket stuff do I REALLY need on my new GTI? I live in the Baltimore MD/Washington DC area where the roads are salted and driving is always a challenge. I plan on washing the car at least every two weeks or more often if required. I'm not a mechanic and plan to take the car to the VW dealership for regular servicing. Do I need an extended warranty, clearcoating, undercoating, etc? Appreciate any recommendations. Thanks!