I saw this over on miata.net:

https://forum.miata.net/vb/showthread.php?t=631991

Here's the announcement from Continental:

http://www.continentaltire.com/news/...-february-2017

I had a set of the DWs on my previous car, and liked them a lot. They weren't as sticky in the dry as Dunlop Star Specs, but they were better in the rain, quieter, and more comfortable. I'm considering the Continentals for my C63 when I burn off the current Pirellis.

 

From the Continental website:

"Also included is a 30,000 mile limited mileage warranty and three-year flat tire roadside assistance (or towing up to 150 miles).

Yeah, I might have to try that, just to see what happens . . .