I saw a new shape (09) S class but it was badged as a S400 AMG is there such a thing? it looked like it hadthe full AMG bodykit and quad exhausts, but whats with the 400??
If you do a Google search you will see plenty. But most articles are not in English. I suspect it's a model for the rest of Europe not the UK. Also do a 400 CDI.
There is ths S400 hybrid, 221.095/221.195 and it could have the AMG appearance kit but it would not come with the AMG badge (like no other model that only have the bumpers etc.).