Comment: The politicians want to ensure that all "stupid" driving is included.  Speeding or racing is but one form, so the term "stunt driving" is used.

I use quotation marks because, in my opinion, speeding in itself does not cause crashes.  Speeding in the wrong circumstances causes crashes: poor weather, poor road condition, too much traffic and so on.  If I'm all by myself on the 401 or the 417 on a sunny day in the summer, I personally see no problem with a speed of 150+ km/h, but I would be alone in that.