These cars don't seem to stick to the ground like they do in F1, so I guess they need to slow down a lot for the corner just like regular cars. Except for the guy who uses the wall to push him through the corner.

The 2022 “NextGen” cars are significantly stiffer than prior cars; it’s possible that they are stiff enough to be better able to run the full half lap without getting stuck, but I more suspect no one seriously considered it.

Even with Nextgen cars, it’s a last half-lap move at most.

The obvious one is that it ruins the car, at the end of the video you see his car is stopped on the track, presumably he broke some control arms and can't drive it back to the pits.

So it works once, then you're out, and you have to hope you pull it off safely. It was a massive risk, not all courses have a wall that wouldn't have wrecked the car. He mentions that part in the video.

Getting into the wall usually means a flat tire or at least being slowed down considerably. I don’t think you could do this on a superspeedway track because the forces and friction would just destroy the car before the turn was over. On a short track it looks to be a different story.

Its insanely dangerous. Really just neigh-criminally stupid.

Any little lip in the siding on the wall could have caused him to flip or twirl about or get speared or launched his engine all over the place. The walls are designed to keep people safe, including the fans. They are fantastically well engineered and made. But, if he had caught the wall wrong and was catapulted into the stands, he may have killed a lot of people, let alone the danger to other drivers, let alone to himself. The various safety systems, of which the wall was but one, aren't made for that move and could very easily have been compromised in very bad ways.

I mean, it was awesome to watch, just incredibly cool. I'm glad it worked for him, he's in the history books for that move for sure. I can totally see NASCAR evolving to utilize that move in the future.

But he put many lives at more risk than anyone was expecting in such a kinetic sport.

He is slowed, but the other drivers are slowed more by the need to keep traction in the turn.

nitro_force - friction_force > max_force_before_you_slip_on_that_turn

Speed through the turn is limited by lateral forces. The wall can provide more lateral force than the tires can. Yes, there's friction, but the cars are fiberglass, it's pretty slippery against a smooth painted wall (and they have a ton of power).

During the course of the race bits of rubber come off the tires and form what is basically a rubbery gravel. The racing line is cleared of it by the passage of the cars. Get down too low or up too high and you start sliding like you would on gravel. So he went high, accepted the slippery-ness and used the wall to keep him going the right direction as he kept the pedal down.

On the racing line, even with a clean track, they still need grip to turn -- he didn't.

Also to note that as it is the end of the race, they aren't on fresh tires and probably most/all of the field didn't have the full grip they would during other portions of the race.

He is slowed down by the friction of the side of his car against the wall. And probably by bits of his car being torn away as it slowly disintegrates. But the engines on these cars are powerful and can easily overcome those effects.

It's not possible to build a car that strong under Nascar rules. The cars are mostly standardized with only minor differences allowed between teams.

THIS is the hacker mindset.

Probably why they will soon make a rule against it :)

You could even put two little extra wheels on the door handles...

The real answer is it only makes for good entertainment once, so it gets banned immediately.

If it had a real potential to spice the game (like allowing foot hits in volleyball) it would be integrated in the rules with some limitation (for instance you can only do it if you’re way behind)

one loose panel or an open exit gate or any other of little things and it would have been a serious accident

A special move being done in a crucial moment is interesting / amazing.

If it's too effective and everyone start doing it, it loses its charm.

Imagine if in Dota every game only consist of 3 tanks and 2 dps carries because it's too effective, it'll get boring soon.

Probably need to change the wall as well

...which was set long time ago with significantly more powerful cars.