While a C55T is interesting a E55T does actually exist but sadly is not imported to North America. But for the ultimate in wagon performance the Euro only Brabus E V12 T is the undisputed champion. The huge 7.3 litre V12 engine crammed under the hood puts out an Earth shaking 582 hp DIN. That will make the any M5, E55 or 500E appear down right slow! Brabus is one of the independent German Mercedes tuners along with Carlsson, Lorinser, and Opus. When Mercedes bought out AMG it effectively closed the door on any one of the 4 tuner’s cars and products being sold at MB dealerships. But Brabus has already expanded to North America and Carlsson and Lorinser wheels do enjoy some popularity here.
The new C Class wagon looks excellent, a big improvement over the old C Class wagon (not imported). My favourite wagon available in North America is the BMW 528i touring which is far ahead of the E320 T in both styling and performance. .
I recently saw an official picture of the C class hatchback in the British automotive magazine Car. I believe it was called the Sports Coupe and it looked great, M-B said they would import it and I certainly hope they do.