Understanding Vehicle Meta Files
Vehicle handling in FiveM revolves around two critical meta files: handling.meta and vehicles.meta. The vehicles.meta file defines the basic properties of a vehicle including its model name, display name, vehicle class, and physical dimensions. The handling.meta file controls how the vehicle actually drives, covering everything from acceleration and top speed to suspension stiffness and traction curves. When you add a custom vehicle to your server, both files must be properly configured and referenced in your fxmanifest.lua to ensure the vehicle spawns and drives correctly. Understanding the relationship between these two files is the foundation of all vehicle work in FiveM.
Key Handling Parameters
The handling.meta file contains dozens of parameters, but a handful of them have the most dramatic impact on how a vehicle feels to drive. The fInitialDriveForce value controls raw acceleration power, while fInitialDriveMaxFlatVel sets the effective top speed. Suspension behavior is governed by parameters like fSuspensionForce, fSuspensionCompDamp, and fSuspensionReboundDamp, which together determine how the vehicle responds to bumps and weight transfer during cornering. Traction is controlled through fTractionCurveMax and fTractionCurveMin, which define grip levels at different slip angles. Adjusting these values requires careful balancing, as changing one parameter often affects how others behave.
Adding Custom Vehicles
To add a custom vehicle to your FiveM server, you need the vehicle model files in the correct format, typically including YFT, YTD, and meta files exported from tools like ZModeler3 or Sollumz. Create a new resource folder, place your streaming files in a stream directory, and configure your fxmanifest.lua with the appropriate files and data_file entries for your meta files. Test the vehicle by spawning it in-game and checking for visual glitches, missing textures, or collision issues. Common problems include incorrect model naming, missing LOD models that cause the vehicle to disappear at distance, and handling values that make the car undriveable. Always test vehicles with multiple players to ensure streaming works correctly under load.
Performance Tuning for Realism
Creating realistic vehicle handling requires understanding how real cars behave and translating that into FiveM parameters. Front-wheel-drive vehicles should understeer under heavy acceleration, rear-wheel-drive cars should be prone to oversteer when pushing hard, and all-wheel-drive vehicles should feel planted but less agile. The fDriveBiasFront parameter controls power distribution between axles, with 0.0 being fully rear-wheel-drive and 1.0 being fully front-wheel-drive. Anti-roll bar values affect body roll during cornering, and brake bias determines whether the car tends to lock front or rear wheels under heavy braking. Spend time driving each vehicle extensively and comparing the feel to reference points before finalizing your handling values.
Vehicle Liveries and Extras
Beyond handling, FiveM vehicles support visual customization through liveries and extras. Liveries are texture overlays that can be applied to vehicles for custom paint schemes, department markings, or sponsor decals. Vehicle extras are toggleable model components like light bars, antennas, spotlights, or different bumper configurations that can be enabled or disabled per vehicle instance. Both features are defined in the vehicle model itself during the 3D modeling phase, but you can control them through scripts using native functions like SetVehicleLivery and SetVehicleExtra. Properly configured extras give players and server administrators flexibility to customize emergency vehicles, work trucks, and civilian cars without needing separate models for each variation.