I bought a new 2006 Toyota Sienna. About a year ago I notice little orange specks on the paint job. Most were on the lower portion of the car, but some were on the top of the car. I took it in and the dealership wrote it off to "rail dust". I asked, what exactly is rail dust. I was told when trains go by on tracks the wheels and rails shoot out little sparks/chips of hot steel that can attach to a car melting into the paint and can give and orange appearance. I live 3 blocks from a Metra station and I have to ask how do all the cars that park at the station not get this. My car is 3 blocks away. I didn't believe that is what it was so I started checking other Siennas in parking lots about the same years. What I found is that all the white metallic Siennas had some degree of the orange specks on them and some of the light metallic blue Siennas. That’s when I knew it wasn't "rail dust". When the district manager for Toyota wouldn’t do anything I called their corporate office in CA. After about a week they came back and said sorry, nothing they could do and offered no additional explanation for the issue. I believe it to be a paint defect, but I am guessing that not enough people complained about it so they are sweeping it under the rug. I wonder how many other people were treated the same way.