What does a semislick represent in real life?

I've searched and not found an answer. I'm putting a set of Yokohama AD08Rs on my car this year. These have a treadwear rating of 200. The Bridgestone RE-71R is also 200. The Michelin Cup 2 is 180 but I'm told it is really closer to 200. I consider these to be semislick tires.

OTOH, the Pirelli Trofeo R, listed with the Michelins on Tirerack's web site, only has a treadwear rating of 60, but it isn't a slick. In fact the Toyo Proxes R888R has a rating of 100 and it almost a slick and definitely a track tire.

I know treadwear ratings probably aren't the best definition but I don't know where else to start. Generally I think of street tires in the 300 range or higher, semislicks around 200 and slicks around 100 or less. Any idea where AC falls on this?

 

It has been a couple of months since I posted this message and there has been no response. Does anybody know?

 

Shoker, what does semi slick represent in real life? They are called semi slicks in real life!

 

Thanks. That may be an English or European term. At least I couldn't find it at TireRack and it doesn't seem to be in common usage in the US. However, by looking up the Dunlop tires in the video, the RT2 (TW300) is a called Maximum Performance and the Race (TW80) is called Streetable Track and Competition.

The Yoko tire I am using this year (TW200) is currently called an Extreme Performance Summer. However, I found a site, http://whichtyres.com, that called them semi-slicks. They spell tires as tyres so could be British or European. On Tirerack, the Streetable Track and Competition is the Michelin Sport Cup 2 (TW180), which used to be listed with the Yoko, so I'm still a bit confused!

I guess the Yoko tires are probably sort of close to Streetable Track and Competion but maybe not quite. Anyhow, I suspect they are closer to a semi-slick than to a street tire, and that is what I will use in AC.

Thanks again.