> The 500E is a retrofit of an ICE, not a ground-up EV. All you can derive from that comparison is that retrofitting is inefficient.

That's all true, but I'm uncertain how much difference it can make. The bulk of the weight difference comes from the batteries, which will be there whether a retrofit or new design. Everything related to the ICE systems was removed, so it's not like there was any leftover weight from the conversion.

Weight distribution can likely be better in a chassis designed solely for EV, but total weight seems likely to be about the same either way.