nice
I can vouch though with that the proof is in the pudding with that wipe off 5 campaign. I have been through a couple of defensive driving courses at Sandown held by Murcotts. One of the practicals was to show how the whole 5km difference works.
I was in my VX Commodore at the time (fully roadworthy) and was asked to literally jump hard on the brakes upon the blowing of a whistle at 60km, and then the same at 65.
At 60, I missed the witches hat. at 65, I flattened it lol.
That being said I do agree with you, they are a tad dramatic