Obviously, the S65 AMG won't be the only V12-engined S-Class, since all the previous ones were actually souped up versions of the S600 flagship. Indeed, the W222 S600 is coming as well, with some industry voices saying that, for the first time ever, it will arrive after the S65 AMG version.
We're pretty reserved about that last bit of info, since it doesn't quite make a lot of sense from an image point of view for the three-pointed star.
The most talked about rumor about these two cars is if they will have a completely new V12 or just more up-to-date versions of the now pretty old 5.5-liter M275 engine. Until our thirst for official info will be quenched by the cars' releases, here is pretty satisfying video of the two upcoming models gunning down the Nurburgring's Nordschleife.