I'd prefer that shooting brake Bentley over the regular one, this one's by Touring who also showed a beautiful Maserati one-off in Geneva.
The Bentley looks great in my opinion, the shape is more cohesive than the original on which it is based, which always seemed a bit too Volkswagenesque if that's even a correct word to use.
Someone, maybe also Touring although i'm not sure, recently created an nice looking estate version of the Quattroporte.
But the best looking exotic estate has to be that 5-door Ferrari 456GT based station wagon created by Pininfarina ( the designers of the original ) for the Sultan of Brunei.