If you want a big comfy popular luxurious saloon with the latest in electronic gismos, dressed in a more 'in your face' body kit, and with a deep V12 grumble exiting from the exhausts, go for the S 65 AMG.
If you want an exotic 4-door saloon with an Italian flavour, Ferrari heart, you don't see driving on the streets everyday, go for the Quattroporte.
If you want a big elegant luxurious saloon with a decent package of electronic gismos, the heart of a wolf, but dressed in the clothing of a sheep go for the S8.
It's a rather personal choice, something we can't decide for you
