T-Tops or sunroof was never going to happen due to the cost restriction of reworking the mold. In order for it to be done in a quality way, it was way too expensive. Even if you did it, you'd of had a car with non opening doors or trunk with an expensive t-top. It didn't make sense. The reason an 84 was never done that it was essentially identical to the 85 in a model. If you'd like to see an 84 produced, np, just by the 85 and throw the box away. The zero performance 82 was also a cost issue for all the parts that needed to be made for a model that all, except the hardcore Buick guys, would ignore. It is a cool part of Buick history, but it doesn't really cause the enthusiasm and 86 or 87 does.