90% of my mileage on this tire is on track, the balance is going to and from the track. I'm really impressed with the grip and predictability of the tire. I've got Michelin tires on my street wheels and as soon as I swap wheels for the track, the car is transformed into a corner fiend. I use a very aggressive brake pad for the track and the tires work like R compounds with the pads. I ran the Michelin's on track once and they were always locking up with the aggressive pads, not so with the Hankook's.
No experience with them in the wet or cold.
When I croak these street Michelin's, I'm getting another set of the R-S3's for the street.
The open question is, how many street miles will I get from them?
They cost half of other performance tires, so they only need to last half as long to be equally cost efficient. I'm confident they're up to the task but time will tell.