Yes, I would say it's smoother. Pirelli tires are a sports performance tire so I think they pair well with a sports sedan, seems to hug the road better. I feel like my car handles better. Now if I could just test it on the Autobahn...
The very helpful guy at the tire store recommended 2 different tires based on comfortable ride and sports performance and I chose between the two. If a smoother ride is what you are after, I'm sure they can direct you toward the right tire for that.
