What's this and what's it's purpose?

[t-tony]

Ok. I'll come clean. What happens is, when the car has a serious rear end impact and the car deforms, the spike on the axle beam punctures the tyre to stop the axle beam from being bent forwards and rupturing the fuel tank.

Tony.

 

[Tfp]

Thank you Tony, had me stumped.

I was hoping it was the mounting point for the rear facing cannon to blow away tailgaters.

 

[hard top]

Ok. I'll come clean. What happens is, when the car has a serious rear end impact and the car deforms, the spike on the axle beam punctures the tyre to stop the axle beam from being bent forwards and rupturing the fuel tank.

Tony.

Yeah right, the state of that car, that would be the first bit to fall off ....

 

[Redline]

Ok. I'll come clean. What happens is, when the car has a serious rear end impact and the car deforms, the spike on the axle beam punctures the tyre to stop the axle beam from being bent forwards and rupturing the fuel tank.

Tony.

As - I was just going to take a guess.

Take-off point for a plough or other agricultural machinery.

 

[Mazza]

That’s assuming that all old fiestas’ carry a spare.........otherwise BOOOOOOM!

 

[t-tony]

That’s assuming that all old fiestas’ carry a spare.........otherwise BOOOOOOM!

Well, no it wouldn't, that's just the point. It was the spare wheel which caused the danger and that's why it needed to get punctured vey quickly in a rear end impact.

Tony.