A bit different approach for the ETK I-series. Will update when i got more to say, just leaving this here for now. Feel free to express any thoughts or requests concerning this project . Download page: https://www.beamng.com/resources/etk-c-series-etki-restyle.6296/
Those headlight are killing me... Maybe redesign the front a bit and make it a bit rounder/ aerodynamic? Overall this is a cool idea, I love the rear of the car with the flush taillights. Something about them make the ETK look more sporty and aggressive. --- Post updated --- Maybe you could do a coupe version of this? I don't know, but good start!
...or maybe the small gap between the second pair and grille can be closed up with the panel being edited.
Yea, I like how the grill wraps around the headlights. But I do agree on making the Outside headlights bigger.
Trunk lid might need bit sharper edges as current ones make it look bit soft, also bumpers need to extend out bit more so that you can have bit of shelf there, but other than that nothing catches my eye needing improvement, maybe widebody kit not to have quite so big steps where it begins, but I think you have perfectly right direction and know how to tune it to look really good. Front is really shaping up, finally something to sort out too bland looks of I-series, while I-series is just fine by devs, it does lack aggressiveness in looks that both German models do have in their looks. In a way, I-series has looks of basic family Nissan instead of driver's car that it's mechanicals are, but this redesign is definitely going to right direction and making looks to match what is inside.
I think the front should poke out more like a shark nose look. ALso maybe something in the middle similar to a bmw but not a direct copy?