Careful when talking about the Continental Extreme Contact tires as the two types easily get mixed up when posting and reading posts.
Friendly reminder :
"DW" = Summer only 20k-30k miles average wear, outstanding handling. Frequently compared to Michelin Pilot Super Sport, Hankook V12 EVO, etc.
"DWS" = All Season 40k-50k miles fair/good handling. Often compared to Kumho ECSTA 4X, General Gmax A/S, etc.
"DW's" = ? possessive form of DW or someone meaning to type DWS. This is where the two tires are often mixed up.