Mark is correct. I have at least one copy of every release of the 66 Buick Wildcat, including the original, and none of them have the road test parts. The original 65 GP had them, but I don't know if any subsequent releases did. However, the Wildcat is missing 2 parts from the original release. It had seperate side windows that you could use if you wanted to. They're mentioned on the plan for the Customizing series issue, but they weren't in the kit. I can only assume the mold containing them is lost.