They're often one and the same in newer vehicles, unfortunately.

Criminalizing modifying your own car only stands to benefit the corporations that salivate at the mouth thinking of the data mining opportunities.

Criminalizing driving cars with certain modifications on public roads serves to benefit other people on the road, pedestrians, and society as a whole.

In this case, modifications that remove or limit "safety features" that aren't even a requirement now, and many cars on the road don't have?

Not to mention, as others in the thread brought up, can invite issues of their own.