Ya except the General Lee would be destroyed on a jump like that.... It would do it once, but never be driven again most likely. God that landing would hurt with stock suspension.
That Hot Wheels truck could do that jump 100 times and never know the difference.
An old K5 would need about $80,000 of work done to it to make that jump and survive... Actually should probably just start off with a tube frame and make it look like a K5 with fiberglass body panels...