AWD Tires in the US?

[Mach_Tuck]

Yep. Run the exact same size tire on my E46 M3. Use the A/S3 as well and is a great all around tire.

I like that both cars use same tire so I can finally buy set do four and get some local deals when avail.

 

[Marc Collins]

Correct.
The OEM Michelin Pilot Sport 4 rear tires on my car show 255/35/ZR19 96Y
The Michelin Pilot A/S Sport 3 rear tires on my car show 255/35/ZR19 96Y

in translation, both tires are rated for speeds (Z-rated) in excess of 148 mph, and the "Y" in the signatures signifies that speeds up to 186 mph / 300 kmh are permitted.
The only difference between the Summer tires and the All Seasons tires are the profiles and of course certain driving characteristics..

Obviously, there is a lot of guessing and "I heard" coming to the fore, without any actual experience. If you live near a Costco or an UPS route, you have all the tires you want available to you. TireRack is your friend.
And All Seasons tires are not awful, to the contrary, they tracked in February through Pennsylvania and the Virginias in great fashion. And February means winter weather with snow, sleet & ice... Highly recommended!
I used them because I expected that most of my route to Florida would be cleared by snow plows, but snow plows are not of great help in a winter storm. This is when these tires showed their mettle.

If KIA delivers cars on19" staggered rims, shod with A/S tires, you can pretty much guarantee, that those cars will be allowed to go to the declared top speed.

The profile is actually the same. The only difference between the tires is rubber compound mix and tread pattern. No one tests this because it would detract from summer tire sales to performance nuts, but I bet the PS A/S has about 95% of the grip of the PS 4...probably only noticeable on a track...but can easily handle anything but the most severe cold and deep snow in the winter. No reason to move from using just those if you live in a four season climate zone. Saves a lot of hassle twice per year.

Would be interested in your back to back impressions if you leave the A/S on into the warmer weather for a fair comparison.

 

[moinmoin]

profile is actually the same

LOL. My bad. Ment tread pattern but wrote profile. You are absolutely correct. As everybody should know, compounds for summer & winter tires differ - after all compounds are created for their stickiness in different circumstances, amongst other qualities.

One thing for sure, the A/S tires will stay on for the foreseeable future.