Here on the eastside of Seattle it is a rather RARE occassion that I have to deal with snow or ice on the roadbed, so winter tires of any ilk would be a waste.
And I suspect you have to spend a winter or two in MT, even in the Bitterroot valley ( the banana belt of MT) to understand the tire chain issue.
Strange...Hasn't Lexus been using 17", or even larger, wheels for quite a few years now...??
"Squimy in the snow..."
Let's see, wider wheels, more, wider tread on the road, less sidewall to flex...
"physics and everyone else..."
I can't speak for "everyone else" by as for physics, NOT in any of the classes I attended...!!
And finally.....
"..drive into a blizzard and punch it and report back..."
No need for a blizzard, my snow covered parking lot experience should suffice...
When I "punch it" the brakes "rattle", the engine get dethrottled, and the RX moves slowly forward at the speed, acceleration rate, that can be supported by the available surface traction.
But "punching it" otherwise is against my base nature and lifetime driving experience.
Here is a good place to start: http://www.tirerack.com/a.jsp?a=AK1&ur...&techid=126 I know, I know, they are a retailer. They must be trying to sell you the cheaper -1 tires because there is more mark up.
You show me one thing that even hints that fat low profile tires are better in the snow than narrow high profile tires and you can win Gore's Nobel prize.