It's definitely something worth thinking about.

I'm sure Jeff won't mind me showing a small extract in the form of a graph:

You can see it's pretty strong on Autavias, Carreras and Monacos, but it's definitely weaker on everything bar those. Divers, for example, have but a single example in the list. If we had some more of the less represented models on there, it would certainly help in correlating one model's dates against another, allowing for separate case batches being created of course.