Kia EV4 Hatchback announced with 590km WLTP range in Long Range trim.

Very good point, feeling dumb not having thought about that…

The back camera is integrated, so you’re very correct

Edit: this means nothing, as pointed out below…

It should be a pressure relief channel coming from the wheel arch: wheel rotation creates a complex air flow and I think this channel lets trapped air flow outwards (and stay attached to the vehicle sides, improving aerodynamics). Probably I got much wrong and more probably still, it’s of no real use for a road car driving under 200km/h.

Edit: could also be linked to brake cooling, now that I think of it…