I have a 2008 CTT and I'm looking at a set of 958.2 Design II wheels in 19" to run in winter. Does anyone know definitively that these will fit my 2008?

 

OK, more info. The wheels are off a 2016 Cayenne. Tires are 265/50 R19 on them now. I found this website http://www.wheel-size.com/size/porsche/cayenne/ It shows wheel specs for every year of Cayenne. If my 2008 had come with 19's instead of 21's, it would have been identical to the 2016 19" wheels, except the 2016 are 8.5" wide vs 9" for the 2008 and ET 59 for 2016 vs ET 60 for 2008. The width shouldn't make any difference, I can't imagine that 1 different ET would, can anyone confirm?

 

Well if they are winters you will want to run narrower tires anyway. Since wide tires suck in the snow.

 

You are right about that. We got about 3" of snow last week, so I decided to try the Cayenne to go to church. It's close by and not too steep, boy did the 21's suck! The 18" all season Michelin tires on my wife's Sequoia go much better in snow.

While trying to decide what to do about buying these 19's, I went to look at exactly what is on the CTT. DOH! They are Cross Contact UHP's, summer tires! No wonder they felt so bad in the snow. I could have sworn the seller told me they were all season. Now I've started looking at the DWS 06's in 21. We are 100 miles south of St. Louis and while we get some snow most winters, it never sticks around for more than a couple days. These UHP's are probably 50% gone, which means they will be shot in another 7-8K miles. I can limp through the rest of winter on the summer tires and replace them next fall with all seasons. I guess I was considering the 19's because: better in snow, maybe a quieter and better ride. But they would cost me $800-$1000 more than just buying some DWS 06's in 21.