Not 100%, but No one I've seen has them, and in a review video (i'm trying to find it again to post here) said they will NOT be included with the S650. That being said, there are conflicting threads on here saying the S550 covers work. If you are willing to take the chance, you can find the s550's online for about $100.Does anyone know for certain, one way or the other, if convertible tonneau caps are available?