Here is Chevrolet's view on high performance A/S tires vs Summer Tires for the new Corvette, and their reason for using A/S tires on the base version.
Excerpts from the article:
["Tires have improved to the point that today's all-season tires can provide dry grip that's better than what summer tires could do not that long ago."]
["This tire doesn't make the compromises that a summer tire will make when the temperature drops below 40 or 50 degrees, especially if it's wet," says Lee Willard....]
(the tire he is talking about is the new Michelin A/S 4 tire, but pretty much the same goes for all HiPerf A/S tires vs Summer only tires, just not quite as extreme as 1.0g lateral...)
https://www.caranddriver.com/news/a2...-season-tires/