Eve seen a lithium battery burn?
Yes, in my early drone experiments.
Both are pretty nasty batteries.
The embodied energy in a Tesla battery system is more than the vehicle will use in its entire useful life.
It’s remarkable that either is being entertained as a practical long term solution.
They don’t all burn. Go a little bit down the scale of energy density and you encounter lithium iron phosphate, which doesn’t require cooling and poses no risk of explosion or fire. Fairly bulky for use in a vehicle, though, so you typically only see them in custom electric vehicles (fast, very fast, will burn the tires right off if you want) but they fill the entire trunk. Seem to be finding their niche in the marine and RV industries, where space is still at a premium but there’s more of it to reconfigure and the benefits are enormous compared to lead acid or even AGM golf cart batteries. Or, they’re being used for very light vehicles such as bicycles, in which case the batteries can be small enough to work. They’re not particularly heavy.