This is just a list of a few things I'd really appreciate being added to the game, some of which I'd assume are fairly easy to implement (others, maybe not so much). In-depth brake options. Being able to change the brake caliper colour alone would help so much with customizing cars. It looks kind of awkward when you have red calipers on a yellow car and your Covet looks like it was sponsored by Turbo Burger in a past life. On top of that, having the option to choose between smooth, slotted and drilled rotors would be very nice, as not all sport brakes look all that sporty. Having different rotor size options would be great as well, since not all brakes fit all wheels. That could also help upgrade the sport brakes in a campaign setting, as I'd assume race brakes would be pretty expensive. Finally, different caliper covers would be nice to have. Not everyone wants lettering on their race brakes, and some people might want RS badging on their Sunburst's front calipers, etc. With the ability to change caliper covers (or even just the paint/badging), that would benefit both sides. Improved tire and wheel customization. This one sounds simple, but I can understand how it would be tedious to add all the options. By "simply" adding more wheel and tire sizes, that would help so much with wheel options. It's annoying when a car's tires look like they don't fit because the only aspect ratios available are 45 or 65. There's been countless times where I've gone to put wheels on an SBR4, only to have them stick outside the fenders, or not be able to run a staggered setup, as the same wheel isn't available in both sizes. With the wheels sticking out, despite being factory width, it makes me really want different offsets for the current wheels already in-game. Since we're still on the topic of wheels, myself and other BeamNG players would love it if the wheels were made colourable like the car's paint. There's already an empty space for a fourth colour palette, plus that would help so much with scrolling through dozens of duplicate wheels. Lastly, being able to pick exactly what lettering you want on your sidewalls (if at all) would be awesome. This could also clean up the tire lists, as whitewall, thin whitewall and redline sidewalls could be sorted with the sidewall lettering. Additional intake and exhaust tuning. I partly went into this on my recent powertrain feedback post, but being able to personalize exactly how your car looks and sounds would set BeamNG so far ahead of every other car game - Even farther ahead than it already is. If you could change the blow-off pitch and volume, as far as I know, it would be a first in a video game. Changing between equal and UEL headers and hearing the difference would be so cool. And if you could determine exactly what heatwrap, intercooler, intake filter, etc. on your cars, BeamNG would blow a lot of people's mind with that level of customization - Myself included. At that level, the customization would amaze people just like the crash physics originally did. But then again, that's just a few ideas I had. Hopefully other people like them too; and hopefully-er (for lack of a better term) some of them even make it into the game. I also suck at wrapping things up, so, yeah...
About the brakes, this all could easily be done and I'm really surprised that nobody made a mod like that before. About the wheels, you can change the offset in tuning menu already, I agree that different sizes for existing wheels should be a thing but new wheels get added with every update so we don't need that much more designs, and also some are already colorable, maybe colorable versions of more wheels would be cool. The idea with tire lettering is cool, but the thing is that the lettering goes together with the tire properties so it would make a much bigger mess in the game files and reduce realism. And yeah the game really lacks exhaust customization, you can only change the pipes on most cars and headers and mufflers on some additionally.
In response to the wheel offset, I know it's possible to already change the hub offset, but quite often, it's not enough. You can have rear wheels in the SBR4 that are the factory width, have the wheels in-set as much as possible, and still have them hanging outside of the car.
