The body weighs nothing. Only the body is higher. Does not effect COG.
Oooookay then, I can see this argument going nowhere. You win, the body is weightless.
To add some tech to this, the body actually weighs a decent amount. The 80 top (not including glass, etc) from the bottom of the windows up is about 230 lbs. The rear hatch and tailgate (including glass) is about 110 lbs.
On top of that, you have the rest of the sides, floor pan, doors, glass in the doors, windshield, sunroof and motor assembly (heard 60 lbs there alone), plus all the misc stuff attached to the body.
Heck, the 3rd row seats, seat brackets, and seat belt assemblies alone add 100 lbs. 2nd row weight more than the 3rd, and 1st weigh more than the 2nd (especially if electronic instead of manual).
And unless you're strapping your camping gear to the frame, all the occupant and gear adds in as well. Four adults alone would easily be 700-800 lbs.
While I don't have an actual weight figure for the body, I don't think it's unreasonable to guestimate somewhere around 1k lbs (dry, not including passengers and gear).
Now Wrench does have a point. You're only lifting up 1k lbs by an inch or two. That's a
huge difference than lifting up the entire frame, engine, drive train,
and body an inch or two. The frame alone is probably about half the weight of the entire body.
TL;DR version: A body lift
does raise the CoG, but the amount it raises it is tiny compared to a suspension lift.
