The fact they built it themselves rather than getting Arctic trucks to build it says it all.
Or any of the off road race builders. later on they split the lower control arm which looks standard pressed steel. Should have been rose jointed at the very least.
Will finally get to watch the rest of the show at some stage.
Also, they were worried about the brake discs cracking due to the change in heat from -30deg to super hot which I think explained the fractured rim when the brake caliper let go. Why not do away the brakes and run a decelerator on the driveshaft and just a handbrake. Weird.