Why bring it up? Because the flop was far less violent than the other crashes. The energy it took to flip the jeep used up kinetic energy the other trucks put into stopping hard and fast. Having experience with rolling, I know they aren't as scary or violent as people expect.
My speed at the start of a couple of my rolls was up to 80mph, not controlled and slow. They were faster than this test. Like this test, the act of rolling slowed the vehicle considerably. My seat was not much deeper than many seats I see in cars, but slightly. My interior, however, was bare metal everywhere, not padded pleather. Because there are zero crumple zones, the impact was absorbed by the frame, so transferred throughout the seat to me.
As for whiplash, I think the heavy helmet I was wearing would multiply that, not protect from it. I had no hans device, no helmet straps.

Edit: rollovers like this are less likely to cause whiplash or spinal injury than coming to a dead stop like the trucks did.

Is it exactly the same? No. Is it significantly similar? Yes. Do I have a decent idea of what a violent rollover is like. Yes. Better than around 99.999% of people.

When racing, 2/3. No neck brace in those days. Once while training, no helmet either, but yes, 5 point harness in a full tube racing buggy.
Honestly, the only one that made a real difference was the cage. A 4 or 3 point seatbelt would have been sufficient thanks to a deep racing seat, and most rolls were due to super soft silt grabbing the outside tires in a turn....that scrubed a lot of speed right away and made the final hit extra soft, a few were on hardpacked dirt, but they were short course so maybe 30-40 mph entry speed instead of 60+, around 20 by the time my side hit ground.

Wow.
Three thoughts:
1) European liability laws and releases of liability are really different from the US!
2) No helmet, not even goggles against swirling dust in an open topped car
3) Did anyone else hear the sound track of Gran Turismo in their head lol?

Nice video.

This probably needs an EIA too.

Attaching a bunch of sharp blades to your wheel hubs may seem funny, until metal fatigue causes you to throw one in a random direction.

Also... What happens when he falls off?

Also also... No helmet?

No helmet!

No helmet, shorts and sleeveless.... what could go wrong ?

@ 1:00 in the clip you can see the guy flying along the outside of the ship with no helmet (it appears seconds later).

Did they not have time to re-record that?

No helmets? Seriously? Buy some helmets.

Oh man, that moment when the board starts to wiggle.. Scary feeling and you can't stop that vibration once it starts, you know it's bail time.

I had to once bail from 50km/h back in the eighties, the moment my feet touched the ground on that speed, man... I took two strides and went over ten meters with each and they HURT, "BLAM, BLAM".. But staid upright, small scrapes from tunnel wall and very very sore soles. Didn't go for top speed after that one. Speed was measured as there were a very busy roadway parallel and the minimum speed is 50km/h in that point, usually more.. And we were passing cars... No helmets, no kneepads, just fingerless gloves, t-shirt and jeans. It is a small miracle i'm still alive.

Well, kudos to him for trying.

Whenever I'm snowboarding, it always scares the bejesus out of me to see kids fanging themselves off huge jumps with no helmet. Invariably they stack it, and just dust themselves off and walk back up the line. Meanwhile, I know that fall would be the end of my season.

Getting old is a terrible thing.

A 14.5-foot drop onto concrete with no helmet is going to ruin your day. And your ability to walk and toilet yourself.

Wow. Fast. No suspension. Inadequate roll cage. No helmet or restraint of any kind. Pretty neat mod of a tractor, however.