Tesla explains that the "Cybertruck is built with an exterior shell made for ultimate durability and passenger protection. Starting with a nearly impenetrable exoskeleton, every component is designed for superior strength and endurance, from Ultra-Hard 30X Cold-Rolled stainless-steel structural skin to Tesla armor glass." Not much different from a unibody design. Just terms that are useful for marketing purposes especially in Tesla's case. The only ACTUAL differences is that here, we have an nontraditional production process (30X Cold-Rolled stainless-steel) and more weight distributed towards the exterior.