In regards to your last point, it would be like saying, "The Honda Civic is the most used getaway car". What is the takeaway? The Honda Civic is the most useful car to criminals and the best getaway car, or just one of those cars that is everywhere?
That, due to its popularity, it is likely to be used in a greater-than-average commission of crimes.
If we looked at drunk driving incidents, and from those, were somehow able to determine that the Honda Civic was used in a higher percentage of them than other cars, it would be a mistake to conclude that Honda Civics were in some way more appealing to drunk drivers, or that they more easily facilitated drunk driving, while excluding overall ownership on the whole.
Further, much of the legislation being considered (at least in Feinstein's bill) is akin to saying "Okay, the Honda Civic is used by drunk drivers. The Honda Civic has 17" tires and cup holders. Let's ban cup holders and 17" tires. No, let's ban all cars that have some combination of 17" tires and cup holders."