US Car Culture v2.9 [Unofficial support from 1.59 onward]

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Azuirele
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US Car Culture v2.9 [Unofficial support from 1.59 onward]

#1 Post by Azuirele » 17 Mar 2025 09:57

ANNOUNCEMENT
From 1.59.* onward, this mod will only receive unofficial support from my collaborators to make sure the mod stay up-to-date and useable in the future. There will be no more new contents, as I have retired from modding.

Sincere, Azuirele

Welcome to US Car Culture, a mod I’ve been developing over the past few days to enhance realism in American Truck Simulator. This mod is designed for players who, like me, want more realism in their gameplay.

In ATS, AI vehicles spawn at a balanced rate, resulting in an even distribution of different car models across all regions. However, in reality, certain brands are more prevalent in specific states, such as Ford in Wyoming and Arkansas or Honda/Toyota in California.

The primary goal of this mod is to adjust AI vehicle spawn rates and locations to better reflect real-world US car culture.

GAME VERSION SUPPORTED
- ATS 1.59.* and onward : Unofficial support

LOAD ORDER & COMPATIBILITY
General load order of all US Car Culture content:
1. US Car Culture - Compatibility Patch.
2. US Car Culture - AI Pack's addon.
3. US Car Culture.

Load order with other mods:
⬆️ Above any realistic traffic/traffic density mods.
⬆️ Above any non-supported AI Traffic pack.
⬆️ Above any map mods.
For other mod categories that are not mentioned here, you can follow the general load order for mods.

Known Incompatible mods:
❌ Any realistic AI vehicle color mods, as this feature is already included in my mod.
Besides that, my mod also modifies the following game files:
  • Most of /def/vehicle/ai/<vehicle>.sui
  • Most of /def/vehicle/traffic_storage.sii
  • /def/country/traffic.sii
  • /def/country/license_plates.sii
  • Some AI models/ model lods.

If another mod only modifies one of these files (not all), load it below my mod to ensure partial compatibility.

Please make sure to follow this load order and requirement strictly, to ensure my mods function properly, and prevent any unusual behavior in your game. Specific mods are also fully supported individually by US Car Culture, and are listed in OTHER MODS COMPATIBILITY STATUS

KEY FEATURE
🚗 Realistic State Traffic
➜ Reworked all AI vehicle brands' spawn rate based on their market share in the US.
➜ Reworked all AI vehicle types' spawn rate based on their market share in each US state.
➜ Reworked each AI spawn rate individually.
➜ AI vehicles that are not marketed in US will no longer spawn, including in traffic, road events, parking lots, etc.
➜ AI Classic/Antique vehicles' spawn rate has been significantly reduced to reflect their rarity.
➜ Rare variants of AI vehicles, such as Ford F-150 Raptor, will also spawn less.
➜ Old-generation AI vehicles will also spawn less.

⏲ Vehicle specs improvement
➜ Adjust vehicle specs, such as engine power/weight ratio, using data from Auto-Data.net and Wikipedia.
➜Fixes/corrected numerous wrong spec numbers from SCS.
➜Additional condition for certain AIs.
➜Additional tags for every AI that doesn't have.

🟥 Color Expansion (REQUIRE ATS v1.57 ABOVE)
➜ Colors for vehicles are based on their actual colors that are or were offered during their production, available to be found on PaintRef.com.
➜ Color varieties are based on the era they were produced in; the older the era, the more colorful they would be.
➜ Color varieties are also based on body style. For example, pickup trucks will slightly have more white color than others.
➜ Sport/Muscles class or Classic/Antique vehicle will have its own unique color profiles, completely stand out from modern-day color preferences.

🪪 License Plate Expansion (REQUIRE ATS v1.57 ABOVE)
This is currently the latest feature of US Car Culture, added after v2.0.
➜ Add more plate designs to each US state.
➜ Among different designs, currently features the following license plate types:
  • Standardized license plate, including all common series and historic series.
  • Specialty license plate, including charity variants and region-specific variants.
  • Other types, such as veteran, disabled person, or state-specific license plate.

➜ All license plates have near-accurate series formats and font color, including non-passenger vehicles. (Due to game limitations, a perfect resemblance is impossible at the moment)
➜ Introduce out-of-state vehicles, now you can actually see vehicles from different states cruising on the interstate, or simply visit the city area.

➕More AI variants (REQUIRE ATS v1.57 ABOVE)
➜ Add/enable unused or incomplete AI created by SCS
➜ Add more trailer variants for some AI, aiming to improve the diversity in traffic.
➜ From v2.9, add more AI from ETS2 that are/were marketed in US.
If you are curious to know, all the new AIs from my mods are listed in here.


(ALL PICTURES ARE TAKEN WITH ALL ADD-ONS + MAIN MOD WITH INCREASED TRAFFIC)
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SUPPORTED MAP + AI PACKS:
Maps:
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AI Packs:
  • Jazzycat's AI Traffic v16.6.6
  • Jazzycat's Classic Cars v9.0.11
  • grlk3512's ETS 2 Cars (28.09.2024)


CREDIT:
Contributor:
  • erbkaiser: Developer of all US Car Culture + Cip sound compatibility patch.
  • gl00ria: Developer of all US Car Culture + Better Flare compatibility patch.

Other credits:
  • grlk3512 for permitting me to use their files.
  • Cipus for permitting me to feature their mod.
  • Drive Safely for permitting me to use their files.
  • Laqueesha for a mini mod that adds LODs to Jazzycat's AI Pack to improve game performance (On hold right now due to rules issue)


KNOWN BUGS:
  1. Mismatch glare/beam effect for base game AI when using Better Flare compatibility patch.
    Status: Work in progress
  2. Parking modification conflicts with the new hook-up spawn system, which caused AI to not spawn.
    Status: Temporarily removed until a solution is found.
  3. U-Haul truck missing license plate when using US Car Culture with Traffic Truck Smokes
    Status: Culprit is currently unidentified.
  4. On a very rare occasion, Ford S-Max and Mercedes C-Class T-Modell can still be seen on parking lots (no physics, low-polygon model), reported by Jacopo87.
    Status: Currently unsolvable due to game restrictions.
  5. On a very rare occasion, U-Haul trucks can still be seen with a non-Arizona license plate, even in states that have License Plate Expansion supported, reported by Drive Safely.
    Status: Currently unsolvable due to game restrictions.


IMPORTANT NOTES:
➜ The mod will only be updated through Steam Workshop and SCS Forum.
➜ Redistribution is strictly forbidden.
➜ For technical support, such as game crashes, game errors, etc. Please follow KNOWN BUGS & TROUBLESHOOTING section, and report the bug accordingly in here.
➜ For general discussion/suggestions/feedback, you can comment here or also send your thoughts to the official post on SCS Forum (in case you want to provide a screenshot).
➜ Support will never be provided for stolen versions of the mod.

DOWNLOAD LINKS
MAIN MOD
US Car Culture v2.9

AI PACK ADD-ONS
USCC - Jazzycat's AI Traffic
USCC - Jazzycat's Classic Cars
USCC - grlk3512's ETS2 Traffic

COMPATIBILITY PATCHES
USCC - SFP Compatibility Patch
USCC - Better Flare Compatibility Patch (contains both Cip sounds and no Cip sounds version)
USCC - RTD Compatibility Patch
USCC - Jazzycat's AI Traffic + Cip's Sound Compatibility Patch
USCC - Jazzycat's Classic Car + Cip's Sound Compatibility Patch
USCC - Real AI Traffic FMOD Sound Compatibility Patch

Thank you for trying out my mods, and happy trucking!
Last edited by Azuirele on 18 Jun 2026 10:39, edited 83 times in total.
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Former Mod Author of US Car Culture
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Smaland
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Re: US Car Culture v1.0

#2 Post by Smaland » 17 Mar 2025 10:19

Hello, i'm very interested in this mod. Such nice details are always welcome in the game! :D

Do you plan to adapt this mod to the GTA V Traffic Pack and GTA V Classic Traffic pack found in Steam Workshop? As i'm mostly a Vanilla player and tends to play less with real life mods, i think these 2 packs i've mentioned sticks well with the current SCS world. It'd be nice to see your mod compatible with it.
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Azuirele
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Re: US Car Culture v1.0

#3 Post by Azuirele » 17 Mar 2025 12:08

Hi, I'm glad that you are interested in my mod. About your question, as long as they also have class classified (which is one of the core of this mod) or/and are inspired by real-life vehicles, I can make it compatible with this.
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Smaland
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Re: US Car Culture v1.0

#4 Post by Smaland » 17 Mar 2025 12:14

Well, most of the cars in GTA are inspired on real cars, so in this part you'll have no problem at all.

About their class, i don't know, someone would need to look into the files to see if it's possible.
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Azuirele
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Re: US Car Culture v1.0

#5 Post by Azuirele » 17 Mar 2025 12:20

If they are inspired by real-life car then it should be fine on my end, a bit more searching to find which model were they inspired from but I will see what I can do.
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Smaland
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Re: US Car Culture v1.0

#6 Post by Smaland » 17 Mar 2025 12:28

Thanks mate! :)
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KelpoXD
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Re: US Car Culture v1.0

#7 Post by KelpoXD » 18 Mar 2025 14:21

Will there be more states that will be covered (from C2C and Reforma, to be exact) in the future?
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Re: US Car Culture v1.0

#8 Post by Hagen25 » 18 Mar 2025 18:25

I'm trying it at the moment and I love it, it clearly adds realism to the game, I have a question because I don't know much about the traffic mods, but I would like to know if it is possible that in the cities that have ports (Oakland, Houston, LA etc) you can increase the traffic of day cab trucks with container trailers? Or is it really not possible to do so? thank you for sharing your mod and I look forward to your answer.
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Azuirele
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Re: US Car Culture v1.0

#9 Post by Azuirele » 18 Mar 2025 18:41

HagenXXV wrote: 18 Mar 2025 18:25 I'm trying it at the moment and I love it, it clearly adds realism to the game, I have a question because I don't know much about the traffic mods, but I would like to know if it is possible that in the cities that have ports (Oakland, Houston, LA etc) you can increase the traffic of day cab trucks with container trailers? Or is it really not possible to do so? thank you for sharing your mod and I look forward to your answer.
Yes, it is possible. However, I'm currently browsing some other popular (both overall and recently) traffic mods to see if anyone has made a dedicated section for city-specific spawn like that yet, plus lack of data from my side too, so I haven't applied this yet.
Last edited by Azuirele on 18 Mar 2025 21:23, edited 1 time in total.
Ever seen a yellow electric rat making mod?

Former Mod Author of US Car Culture
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Azuirele
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Re: US Car Culture v1.0

#10 Post by Azuirele » 18 Mar 2025 21:16

KelpoXD wrote: 18 Mar 2025 14:21 Will there be more states that will be covered (from C2C and Reforma, to be exact) in the future?
Yes, I will add more state to make it compatible with map mods such as EMMN and C2C to complete US map first
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