I've driven the 4.4i and to be honest...although it is worlds better than the 3.0 in acceleration etc., it is still a bit soft IMO. I'm not going to be burning it up on the road but it would be nice to have more umph.

I haven't driven 4.8 is but I've been reading some thread here on Xoutpost and although "different" and "beast" come to mind, can it really be that overbearing compared to a 4.4i? Is the "is" a reasonably riding vehicle to drive down the interstate and then torch some smuck in an Mercedes Benz?

One question I have is on the air suspension, can that be changed to springs if the time comes when the air bags start leaking and fail? Just curious.

Thanks,

-DR