San Diego Kid, I haven't looked closely at a Gator in a long time, but on the Mule, the bed is all metal, but the fenders, front end, etc. is "plastic". Personally, I generally prefer metal, but after seeing the things my brother and my rancher neighbor have put their Mules through, I'm sold on the plastic for the Mule; very tough stuff to scratch, and if you do, the color goes all the way through instead of being painted on, so scratches don't show much, and I've really been surprised that neither of those machines has broken any of that plastic so far.