The ASX is an all-season tire. Some people refer to them as a no-season tire, as they make big compromises in ever season. They're not great in snow and not great in the dry. They aren't horrible at anything, but far from good at most things. They are cheap though, which is nice. However, unfortunately cheap doesn't mean they are a good value.
I'm not anti-Kumho. Infact, I've owned some that I liked. But keep in mind not all Kumhos are the same, as with any brand. They make good tires and bad tires. The ASX is not one of their better efforts. And I sure as hell wouldn't put them on a Porsche. A sports car deserves much better if you're going to drive it like it's made to be driven. If, on the other hand, you never come close to testing the limits of the car, just buy the ASX and live in ignorant bliss.
Hybrid Mode
