I agree with you about overthinking, but the second half of your comment is very broad-brush. If you went back in time to any era of vehicles or other artistic objects, you'd find they all had a similar feel reminiscent of the era. There are plenty of cool modern cars/clothes/etc.! For example, look at Toyota with their wacky 3 cylinder turbo AWD Gazoo Racing Corolla or Hyundai with their angular Ioniq. I will say the arms race going on re: vehicle height/size is a pox on car design, kind of like sealed beam headlight requirements and afterthought add-on 5mph bumpers were a pox on car design in their respective eras.
That's a bit of a non sequitur and assumes white/black/gray = boring isn't it?
> Do you disagree with that?
100%. It's all about the entire package, of which color is only part. Aesthetics are always subjective, but, for example, the Ioniq I mentioned definitely (subjective :P) looks best in gray.