Here as a link to YouTube where an F250 aluminum body was in a wreck. Pretty interesting. It also stated that GM will be going to aluminum in 2019. Big Truck Big RV
Listen to yourselves, "UNh, that wouldn't have happened if it were steel..." What a load.
...and if it were steel they'd just bang out the dents, weld it back together, and cover it with an inch of Bondo... How's that better than having all new body panels?