OP, can you please explain to me just why in the hell having all that technical information knocking about your head is important? I have a 2005 Nissan Frontier. Do I know the part numbers for every little part on it? No! There's thousands upon thousands of parts on it! Do I know the number for each of my u-joints? No, I carry a spare for each, so I don't have to. Do I know the number for my serpentine belt? No, I carry a spare because I don't have to. I know my truck. I know the weak points, and I know exactly what is the most likely to break when pushed too far. I have a box with those parts in the back of the truck.
COG and body roll, etc... Don't need the numbers. My butt lets me know something isn't right when it starts absorbing my seat. That kind of technical information is immaterial. I know what obstacles my truck will or will not go over, because I know it, I trust it, and I've spent enough time with it. Besides, my brain has better things to memorize, like what the best line through the rocky bits on Sawtooth Lake Trail is, or where's the best place to eat near the Independence Mine trail (it's the Roadkill Cafe, by the way).
And you're saying, "let's see these rigs take on the Rubicon or KOH." First of all, I know of several people on here that have done the Rubicon n their expo rigs. But I think you're missing the point. Overlanding, expo, all that, it's about eploring, experiencing, and traveling. It's not about conquering the landscape. This hobby we participate in is about the sights and the places, and being prepared if we have to traverse some rough stuff. It's not about purposely seeking out the rough stuff. A lot of people, myself included, are building their rigs for the sake of preparedness. Because they want to be able to continue on their journey if they reach a bog or a water crossing or a rocky hill, instead of saying, "well, I can't do this, might as well turn around and head home." You're really not giving mech credit at all to the amount of thought that goes into these vehicles. These are designed to be self-contained mobile life support centers.
And now you've gone and insulted the people on here by saying they are unprepared because they don't carry every single part with them as a spare, can't spout off every part number off the top of their heads, and don't know how to change a 400lb tire (why is this important to me? I drive a Nissan!). That is an absurd argument. That's like telling an everyday recreational scuba diver that he should be using double tanks and carrying a spare decompression cylinder simply because he's going underwater. An open water diver doen't need all that crap anymore than I need to carry spare axle shafts. Welcome to the land of 33" tires and stock powertrains bucko, where caution is the name of the game. We go out and explore in the full knowledge that the vehicle we're in has to get us home. Being light on the stupid pedal and not overbuilding the truck with giant tires and needless engine mods keeps them more reliable. Hence the need to carry less crap and be less concerned about specs and numbers.
I'll bet you're one of those people aren't you? You know, when a guy starts telling you about his latest off road experience and you go, "Oh that? That's not off roading. That's nothing! When we did KOH last year..." I hate that kind of bulls***. Just because we're not doing it as hardcore as you doesn't mean we're doing it wrong. Why do you feel the need to crap on everyone else's fun?
Oh, and by the way. Sportsmobiles are awesome. I have seen, firsthand, those vehicles go over some really gnarly terrain without skipping a beat. I would have zero reservations about buying one.