handling.meta Deep Dive - Master Vehicle Physics in GTA 5 2026

handling.meta Deep Dive - Master Vehicle Physics in GTA 5 2026 for GTA 5

What is handling.meta?

The handling.meta file controls all vehicle physics in GTA 5 — mass, speed, traction, suspension, braking, and aerodynamics. It's the single most important file for determining how a vehicle drives. Every addon vehicle needs a properly tuned handling.meta entry in 2026.

File location: common.rpf/data/ or addon dlc.rpf/common/data/

Core Physics Parameters

Parameter What It Controls Typical Range
fMass Vehicle weight (affects acceleration, collisions) 800.0 - 5000.0
fInitialDragCoeff Air resistance (limits top speed) 1.0 - 15.0
fDriveForce Engine power output 0.15 - 0.50
fBrakeForce Braking effectiveness 0.3 - 2.0
fTractionCurveMax Maximum grip on road surface 1.5 - 3.5
fTractionCurveMin Grip at high slip angles (drifting) 1.0 - 2.5

Suspension Settings

Parameter Effect Low Value High Value
fSuspensionForce Spring stiffness Soft/bouncy Stiff/firm
fSuspensionCompDamp Compression damping Slow response Quick response
fSuspensionReboundDamp Rebound damping Bouncy return Controlled return
fSuspensionUpperLimit Max extension height Low ride High clearance

Drivetrain Configuration

  • nInitialDriveGears — Number of gears (1-8)
  • fDriveBiasFront — Power distribution: 0.0 = RWD, 0.5 = AWD, 1.0 = FWD
  • fInitialDriveMaxFlatVel — Top speed in km/h (divide by 0.9 for game units)
  • fClutchChangeRateScaleUpShift — Upshift speed
  • fClutchChangeRateScaleDownShift — Downshift speed

Quick Tuning Tips

  1. Start by copying handling from a similar vanilla vehicle
  2. Adjust fMass first — it affects every other parameter
  3. Tune fDriveForce for desired acceleration feel
  4. Balance fTractionCurveMax/Min for grip vs drift
  5. Fine-tune suspension last for ride comfort
  6. Test in-game after every change — small values make big differences

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