RE: Baja 5b SS
Crysis as far as durability it is seams it is extremely durable! I have only been running mine for a couple weeks but I have had some pretty big spills and broken very minor cheap parts (IF something broke mind you) Crashes like running into trees. Flipping it half way around rolling it sideways along its wheelbase things like that. I thought I would be spending a fortune on parts but I have spent very little. I love just driving away from a crash without any damage.
And monster, I do not have much experience driving in the dunes but when I did I put on a front window shield to keep from the sand getting through. And sand paddles are a MUST. Other than that It ran very well in sand!