All of the fwd cars have turning stops. It's too cold now, but I guess I could measure the stops and compare the 850 to the V70R. The awd already squeals tires in the parking lot with the wheel turned to lock, but that is the only speed where one can turn the wheel to lock.
Your are correct about the awd system diffs not being able to handle hard turns without wheel slippage, but Jeeps do it! My old Wrangler turns on a dime, just don't try it on dry pavement with 4wd low engaged!!! The diffs are locked and the noise is tremendous! Perhaps the awd diffs are locked pretty tight at low speeds?
I used to laugh at my brother's old Chevy wagon when he tried to park in a stall at the parking lots. I don't laugh anymore. And his Chevy was rwd, but about 3 feet longer than my wagon.

Klaus
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The 164 has a new home, all I am left with are a 95 854T and a 98 V70R :)