when i got the car fixed they had to put it on a rack.... with hydrolic leavers and all that shit, any ways its hooked up to a computer, with all the originals specs distance between this point and another from factory. to recieve a viv you must take this sheet of paper witch would say those specs are back to normal and not an inch out....... the cars safty standards where done and all that crap so when you hit a wall they know pretty much what would happen at any speed, but if your car is an inch out in places after a big wack then more damage could accure than normal.... alot of bs but thats what i was told.???
ill put up some pics of bit by bit how bad my car was when its finished.