I didn't measure but I had the front passenger about 4ft lower than the rear. Once the tire lost grip on the wall driver rear went straight up. Rear driver had nothing keeping it down so it levitated. Once the driver front started to slide the passenger rear started to lift. It was bad enough that moving hands and arms caused SERIOUS rocking. I was pretty scared. It didn't help that the ground started giving way...
As to Mark's trail, I didn't have too bad a time with it. Something about short wheelbase and not driving off a cliff might have something to do with my opinion though.