More and more rear tires are becoming sacrificial lambs as automakers try to make any car handle better.
This, as much as anything- rears going at about twice the rate as the front seems about right to me, too.
So, imagine you're a manufacturer who likes to make sporting cars, not Camrys.
You want the thing to handle nicely, and you build the chassis to do so. But, turns out, if you've done your
suspension right, the 'sports car' has some tendencies that make it a bit harder to predict than the 1968 Chrysler New Yorkah.
All of a sudden, you're in trouble because the thing doesn't always slide off the outside of the road 'like it's supposed to'
when the driver runs out of talent.
So you have to 'fix' it by
messing it all up but you can't bring yourself to degrade it to the level of a Hyundai Snotta- Car.
Thus, staggered tire sizes, less front static camber, more rear static camber, and, especially, reduced camber gain curves, because
they lull the inattentive into spins (I've done it, most of us have) that get blamed on the car, not the driver.
'trailing throttle oversteer' is to be avoided at all costs.
So the rear tires take the brunt of it, practically speaking.
On a track car, all 4 do!
I don't move my tires around anymore. If I'm feeling poor, and have
access to a machine, I might swap rears side- to- side... or just do a
couple of track days, because there's nothing like a day at the track to
even up your rear tire wear! (and grind the outside edges off the fronts, but, see above re; understeer)
t
rotates his tires daily