Why dataset has no objects shape information?

Why is there no vehicles shape information in dataset? Is there a way to get any? I believe that sizes and direction of bounding boxes would be much more useful than just BEV center (e.g. cars come in lots of different sizes and there are still buses to mention).

That’s a good point. BEV might not be descriptive enough and having object polygons can provide some more context. It is currently not a part of the dataset but we can consider this for one of the future versions of Argoverse.