The folding top on the 1968 roaster models seems to interfere as it folds down and touchs the lid. This is slanted towards the engineering department and I'm wondering if the redesigned lower top and smaller window posed a problem with the change in body styles/same frame as mid-years. The 1964 mid-year I peviously owned did not have this interference and its rear window was larger. Anybody want to offer any suggestions as to the design flaw or lack of planning in this area? Thanks for your input.