Bulletproof railcar sounds rad.,(reply>), @James Peterson, if you're referring to this special rail car, no they don't, I believe.,(reply>), @Das Kaninchen rad is short for radical I think. Cold war origins, it means "awesome" or "cool". American societies previous to this Generation were more traditional and conservative, the term radical often applied to the new generations ideas upon uplifitng the status que. This is a common slang term used by American youth in the 1960's-1990's. Some youth still use it although not as common. Nothing wrong with the word, popular slang just changes over time.,(reply>), Does Lionel make one ?,(reply>), Glady rad?? What does it mean?,(reply>), Cobus Knoetze bet it's still rad just a shame it's protecting him.