I can't for the life of me figure out why they would keep the IFS.
Because it's a show truck that they have no plans to do any real offroading with.
Even then, wouldn't it have been easier than all the crazy trussing to just do a proper SAS? You can still paint the axle bright yellow. Toyota built it's SEMA tacoma with a solid front axle - seems like it'd be hard for them to argue against it.
I can't for the life of me figure out why they would keep the IFS.
I do like the rear ladder and bumper protection.
The article states it is a "Bulletproof Suspension", so I'm guessing they salvaged a lot of the 10-12" Tacoma lift into the 4Runner front end. According to their website that allows 37-38" tires which is cool but obviously a rear gear will be needed and stability on and off road will go to snot.
If you follow the link, the pics on the article show there is a ladder on both sides.
I'd have to try it, but I would think the sideways tilt would make it harder to climb... but maybe not.