Let me just say that I have a 6th gen hybrid with the TRD 2.5 in lift and running Falken Wildpeak R/T's - I get 16 MPG. If you're concerned about MPG, don't get a 4runner.
It'd be nice if you developed the mounts so we could install the full size roof rack on our 6th gen's, I like your rack, but the 3/4 it came with is just too small for any serious overlanding.
I can echo some of the other commentors - rear bumper, rock sliders, skid plates, front bumpers...
Great discussion, I bought my 4runner hybrid and it came with the 3/4 ARB rack. To be blunt, it's just too small - I can't put too much up there, the awning I had to put on is quite small, and I'm finding that with my wife and two dogs, I don't have enough room for everything (I've had to...