X5 4.8is vs ML63 AMG!!

[TRD-SUPRA]

Morning everybody!

I was driving for 3 years a X5 SUV for daily. I'm very happy with that car.
But now I already sold my last X5 that is the 4.8is. I have nothing bad to say about this car and specially then 4.8 engine and also will miss it.

I recently ordered the ML63 with all the goodies. Never drove one so I hope I'm not making a mistake getting this car and already sold the X5.

I'm curious if somebody can tell if we compare the performance of 4.8is vs the ML63 in braking, confort, handling... Does the difference is night and day??
I'm excluding the power becuase I know that has NO comparacion, and basically that's the big reason I choose the ML63 over any other SUV!!

Thanks in advance for any input!