Finally, after 28 months of e-Niro ownership, I discover from forum posts and my own tests that there is absolutely no difference in the power on tap and hence performance, acceleration and efficiency (other things being equal) between all three drive modes. The only thing that changes apart from the display is the accelerator response. So use whatever floats your boat. We can assume that the Soul and the Kona are the same in this respect. But what about other EVs? Have you rigorously tested yours? Does it (rather than you) go slower, drive more frugally, in ECO as opposed to SPORT?