Small EVs you say? Now there’s an idea.

When we see “tested under laboratory conditions”, we often assume real-world conditions will lead to faster degradation of a product.

Why would you assume that? You’re going to test a range of things, but you’re likely most interested in the best and worst case. Lab conditions just means consistent conditions.

I’m surprised it’s as little as that. My understanding of trains is that the rolling resistance is very low and that all the energy is really for accelerating from standstill. That would be recovered during braking (mostly).