I bashed my old 80 into tree stumps, earth banks, concrete blocks and wrote off 2 cars, one at about 25mph and the other about 50mph and it was fine so I'd say if you hit something hard enough to bend the chassis you'll be glad there was a nice solid bumper up front instead of the bendy thing Toyota supplied. On the red 80 we had to put an ARB on the front after Berris rammed it in reverse with the tow bar on her ordinary estate car, 80 bumper was wrecked with some damage to the panel above, not a mark on the other car!