You also take damage from it. Doesn't seem sensible, to me anyway, that you get injured when your tire pops. This behavior affects lots of vehicles besides just the Offroad, and is caused not only by fences but small rocks and those low rock walls too (among all sorts of other objects I imagine). If you back up into a rock or something maybe while trying to do a 3-point turn to reverse your direction, even going less than a couple of km/hr, your vehicle is ruined and you get hurt. If you are going to name a vehicle "Offroad", one should expect that it could be safely driven off road...else it ought to be called "Onroad".

Amen brother, BUT to avoid the "wrath" of Dwarden and ensure that the developers take a serious look at this and actually fix it, can you be specific about the other vehicles affected and provide clear repro steps, as I have above?

Yes, I should have done that. My apologies.

The steps to recreate are not much different than what the OP laid out. Run over walls and rocks and anything else you can find instead of only the fences. Note your speed when contacting various objects. I did not try every bush or twig in the game to find out which ones do what, nor did I try to determine the threshold velocity which causes them to become ruined. There are too many vehicles/objects/velocities for that. I only noticed that in several of the vehicles it happened when I was going less than 10km/h trying to maneuver the thing out of a tight spot. Or when trying to turn a sharp corner and I over or under steered while doing it, causing me to swerve off the road into some tiny object. Even when I saw it coming and slowed considerably to navigate it. Get out of the vehicle to learn under what circumstances you become injured. There is no health bar in the game, so it is difficult (even impossible), to know just how bad the injuries are. But you will nearly always get bloody whenever the vehicle becomes ruined nonetheless.

Again, there are too many vehicles for me to test every single one, but every civilian type vehicle I've driven has exhibited this, and at least one of the military-style trucks which are not armored. I have yet to drive an armored vehicle and so am unable to confirm if they are included, or not, or to what degree. The hatchback, panel-style delivery truck (UPS truck is what I call it, not sure what the actual name is), the Offroad, the flatbed pickup truck, and the huge supply truck in that Adapt mission where you have steal one by ambushing a convoy. These are all vehicles I reckon more delicate than my four-year-old niece. The quadbike ATV seems a tad more rugged, but even that will get ruined at fairly low speeds when you "encounter" an obstacle that appears, visually anyway, not very threatening whatsoever. Frankly, that quadbike is the one vehicle I would expect would be the least rugged, most dangerous, of the lot...simply due to its size, the lack of protective metal framing surrounding you, and the ease at which it is possible to get major air time while operating it. I also think they all explode too easily. It does take a pretty severe accident, or at least a more severe one, to warrant an explosion, but I think the threshold is too low. Of course, when they explode you simply die.

From the 28-07-2014 Change Log (game EXE rev. 126163):

"Fixed: Adjusted durability of rear glass of SUV"

What about the durability of the rest of the SUV? If they can tweak the durability of the rear glass, why can't they tweak the durability of the tires and body (which are still horribly fragile - tested again using the 126163 build)?

From the 09-09-2014 Dev branch change log (game EXE rev.127101):

Changed: SUV survivability should be in par with Hatchbacks

What does this mean? Are SUVs now even MORE fragile?!