Roll cages

If you slam the same car into a wall at 140mph it will end up nearly the same size with or without a roll cage. This seems very unrealistic and leads me to believe that roll cages in this game are just for looks.

 

Congratulations I guess?

[SUB]complaining that things do not harmlessly bounce off 150mph encounters with solid walls... are you even vaguely aware of what materials do at these sorts of velocities? The amount of force involved at 140mph to naught in a split second. I'm not surprized a rollcage makes no difference, you should be looking at forces in the range of ten thousand kN. at 200mph solid steel tends to turn to dust instead of crumple, at 300mph you can see videos of entire jets vapourizing on contact with a concrete wall. EVERYTHING IS MORE FRAGILE THAN YOU THINK IT IS[/SUB]

 

Even at lower speeds the roll cages affects are minimal.

Example 1 (crash at 67/68 mph aka top of 2nd gear):
With roll cage


Without

Example 2 (crash at 98mph aka top of 3rd gear):
With roll cage

Without

 

Roll cages are to protect the driver from rolling, not so much from hitting something head on. Hence the name roll cage.

I definitely notice a difference with the roll cage.

 

Crashes to the front aren't going to be saved by a roll cage. Only roof crashes are effected by the roll cage

 

I dropped two barrels filled with oil at an identical height onto the Covet, one equipped with a rollbar, and the other without.
Roll cages are supposed to protect you in the event of a rollover, and don't necessarily add any protection in a front collision. Which is why they're called roll cages. So yes, they do serve a purpose.

 

Man thanks guys I'd be lost without y'all.

Someone should tell these guys that roll cages are only meant to protect you from roll overs...


Clearly roll cages range from ones that will only protect you from roll overs to ones that will protect you from any direction and the ones in beam clearly look like they're for more then just roll over protection.

 

Side note: Roll Cages also improve chassis stiffness and, therefore, improve handling slightly.

So, y'know, there's that too.

 

The difference that you can see is that the driver is slightly more protected as the cockpit windscreen hasn't even smashed or really deformed..

Also it's not like a roll-cage is going to make a car have no crumple zones and not crumple and fold in on impact.

The car is made to crumple to reduce forces on the driver, couple that with a well made chassis and the ability to send forces around the driver to the rear end properly and controlled; you've got your self one safe vehicle.

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They also make collision forces go around the cockpit and transmit through the whole car better which makes it a little safer in basically any collision.

Also depending on the design it might moderately or vastly improve side collisions.

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This also can increase under-steer tendency.

 

You cannot compare a purpose built race car with a passenger car with a roll cage. With passenger cars the roll cage is only in the cabin of the vehicle, so it will only protect cabin from top and side impacts, i.e. roll overs.

A race car has a full cage spanning the entire length of the vehicle on top of the already ridged chassis.

 

The problem with that video is you're comparing a purpose built racecar with a road car that has an aftermarket cage put in. But that v8 Supercar is being tested at 63mph (102kph), and rather strikingly In that video you can quite clearly see the rear end of the car crumpling, as there really isn't much structure in the trunk of a race car. Compare it with this crash test by fifth gear using a road car.



Thats a similar sort of speed, road car. The trunk doesn't collapse. But your original complaint is that rollcages make no difference at 140mph. Well frankly, at 10,000kN I don't think any amount of reinforcement would make a difference. But at 60mph, I can show you this. Both of these hit a wall going 63mph, just like the V8 supercar did.



it looks similar, but honestly the differences are there. Very subtly. Have a look at the passenger cell deformation from above



There is a clear difference. But you're comparing the wrong things. You're comparing the rollcage for a road car which does not reinforce the floor with a racecar which is entirely made of rollcage.

 

Should certainly be noted that the rollcage only occupies the passenger cell and does not occupy the engine bay in these vehicles. The engine bay has taken the brunt of the impact and receives no protection from the rollcage here....

 

Does the VW Polo rally car mod have a proper full cage in it? I haven't used it in a while due to the game being updated quite often and not wanting to deal with potentially broken mods, but I do seem to remember it being very stiff from the nose to the tail.