I shit you not, it is only that much lighter. Our alum fenders are very light and thin to begin with, same thing with our hoods.
Getting a fiberglass hood for our cars isnt that much of a difference either. Im not lying, I weighed each one separately, then i tried the pairs together and it came out 6lbs. I will get pics right now of the damage, I will circle the spots that I feel need attention too