I agree with the first, but do not think that the full opening was intentional. When the original springs started to fatigue, the easiest fix was a stock spring that is available at most hardware and home improvement stores. That spring would clip easily across the original torsion spring, but was actually way too stiff, and that resulted in the fully opening lid. I tried it for a while, but decided I would rather help it open myself and ended up taking the helper springs back off.Originally, I think the trunk was designed to open a few inches. But the transformer look was kool and a lot of people added the hinge springs to pop them wide open.