As a casual player, locked car builds are extremely infuriating

The community has awesome builds for almost every car but the fact that it forces you to either use it "as is" or not use it it all is wild. This for some strange reason includes the car looks too.

Ima be honest: I suck at configuring cars and all these sliders + parts combos are too much to ask from me. Every single time I try to make my own config, the car drives worse than it did without touching those sliders. For the love of god, I cannot make NSX-R drift at all, with all the drift parts I could find.

And if I use community configs, I'm locked into bodykits and other cosmetics I don't like. Why...? At least let me customize my looks if I can't properly configure my car behaviour.

Any tips for a newbie to not suck at making my own simple builds? Or any way to actually see configs that are locked so I could at least change my car looks?

Thanks a lot.