quote: And that's not to mention that even stronger aluminum alloys have lower fatigue strength, meaning over time it will be weakened to a greater degree from repeated non-penetrating blows.
quote: While the i3 Coupe doesn't really need to be as damage resistant due to its substantial higher clearance than the Model S, it goes the extra mile, where Tesla chose the cheap route. Namely, BMW chose to put a quarter-inch thick high-strength steel armor plate over its batteries.
quote: But even if you make that argument, it seems foolish to trade safety for performance in a mass market vehicle.
quote: Regarding your solution, pure aluminum is very soft, but alloys are much less so. I seriously doubt gouge resistance is a problem, or there would be more problems from general rocks and more common but less severe impacts.
quote: Pretty sure if the peice of structural that keeps an aircraft in the sky flying at 500+ mph didn't need additional protection, it wouldn't get it.