Until I started working for mercedes I never knew about all the different setups that were available. The S65, SL65 and CL65 from amg have the exact same twin VGT v12, the S55, SL55 and CL55 have the supercharged/supercooled v8, the CL63 and new CLK63 black edition have the 6.3L NA v8. Brabus makes every version down to the c-class available with thier custom 6.5 twin vgt v12. Let me check on pics, I know we dont stock the turbos but I think i can get some pics.