They probably take the view that if you want more stopping power you're going to want to to go faster in the first place.
I agree. I was actually having this discussion with my step dad a few weeks ago.
We got onto the subject of tyres. Should my insurance come down now that I've got decent tyres on my car, while Mr Smith from down the road has a set of Wanli's?
Or should I be paying more for driving an older car, where the handling and braking isn't as good as a modern car and therefore I'm more likely to plough into the back of someone when my wheels lock up.
Insurance, it's a minefield.


Then they would know why people do these things!