I was comparing EVs with different weight and not comparing EVs with ICE vehicles, though.And in that case the heavier EVs are less efficient than more leightweight versions even with regenerative breaking, because the process of accelerating and breaking cant' regenerate all energy that was spent for accelerating.
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It sure does. But we have to consider that recharging is less efficient than not spending the energy on acceleration in the first place, so heavier EVs are worse off than lighter ones; it's not only losses from friction and heat losses - those come on top.And you're spot-on with the danger that comes from weight; being in an accident with a lot of kinetic energy that needs to be absorbed is not great.