an interesting problem you have.

i have some names but no such car.

VLVTHAMR - as in "velvet hammer"; a term used for cars like the Ferrari 456GT which is described as a race car under a thin layer of velvet; also a name play on the AMG Hammer brand; not too readable though (if you are not limited to 8chars then you could improve on it)

BIGSTICK/BIGSTIK - "speak softly and carry a big stick", as in TORQUE, which the E55 is endowed with

i'm sure others will come up with suggestions also ...