i have not driven the 4.6 nor have i raced one. But i was side by side by one, it was also imola red. And ill be honest, maybe the car was not maintained well or something, but it looked so outdated, the car seemed soo much older then mine. The looks overall, the 4.8 has the upper hand, its a newer car, aka newer everything as far as looks go, i mean even the leather condition, if you think about it fades over time.

As far as performance goes; i dunno how much of a diff there is; but the 4.8 does have all around air suspension and i love air suspension. I dont know if its a better choice or not for handling but it is a higher technology suspension that you can control and adjust with some mods.

The engine is also the newer bmw engine that now comes on the 750's so i would rely on this engine more.

I guess my point is; its all about the new stuff, if your going to keep the car for a while go with a 4.8 it will last longer since its newer, and everything else about it is newer. IF your not going to keep the X for that long, then keep the 4.6 and save money

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