You probably frown upon real life customization as well, if not I can't see why it's strange to want to do it in a videogame as well especially without the concern of real costs, practicallity, or the fact you wouldn't be seen driving it in real life, etc.
Oh the age old "play NFS/Forza/whatever" argument, guess what, how about 'looking pretty' and being a 'real driving simulator'?
How about it... a simulator physics and the affects of environmental conditions upon the models. Last I checked, we weren't racing through the streets of LA; that was Midnight Club. We're not charging through the streets of some fictitious beach-side surf city; that was TDU2 and Burnout...
Last I checked, the races we run in GT5 are sanctioned races in places where races are actually held... even the Nurburgring has the graffiti on the road (most of it).
And, if you want to have both, there are plenty of games that offer you both. This isn't one of them and many people are perfectly happy with that. You, and several others seem to be bent on watering down the game to appeal to aesthetic tastes, and you're within rights to ask. Frankly, I don't see the point in attempting to make GT5 like other games when clearly GT% has been a mainstream racing sim leader since inception (well there was that year TOCA did really well).
Or aren't people able to appreciate both simultaneously or at different moments in your world?
Didn't know aesthetics and physics rule each other out, you learn something new everyday I guess.
When on the topic of simulators, yes... physics rule out aesthetics... it's sort of the point. Fortunately, Polyphony did a bangup job with the graphics, but here's another lesson.
When reading reviews and whatnot about software titles, pay attention to context clues. When GT comes out, nearly every release is said to be "one of the best looking driving simulators around."
You know what isn't said? "One of the best looking driving games around."
Why? Because NFS is a game, GT5 is a simulator. Simulators mimic real-world as closely as possible to convey an experience. Games... they're just games.
That's TWO things you learned today. Lucky you