Here's a site that has both the OEM CLK 55 AMG rotors and stock replacements. Slotted, solid and Cross Drilled. No Cross Drilled AND Slotted ones that I can find.

Link

If someone has found Cross Drilled and Slotted rotors for the SRT6, PLEASE give me a link to the website (not e-bay if you can help it). Thanks in advance.