Not exactly the data I was looking for. This is very niche and not from a more comprehensive level. However, the city level data seems to show that some cities are not seeing a higher spike, but others are. Without any real analysis, this seems to indicate that there are other factors at play than simply Kias being easier to steal.

Why are people disagreeing with this? If you run an experiment looking at a variable change and it doesn't change much in some places but changes a lot in others, then wouldn't this prove that there are other variables at play - that it couldn't possibly be that single variable itself?