Handling API driveMaxFlatVel is partially broken

[xxshady]

Description of the problem

If you try to set set driveMaxFlatVel on any vehicle instance e.g. to 1000 nothing changes visually. However, alt.HandlingData works.

Reproduction steps

• Set player into manana car
• alt.Player.local.handling.driveMaxFlatVel = 1000
• Nothing changed, even after restream vehicle

alt.HandlingData:

• alt.HandlingData.getForHandlingName(alt.hash('manana')).driveMaxFlatVel = 1000
• Restream vehicle
• Works

Expected behaviour

Per vehicle instance Handling API should work i guess

Additional context

No response

Operating system

Windows 11

Version

13.0-dev9

[deluvas1911]

Confirmed using dev10

[amazur31]

Bump.
This is a really big issue for us. We can't develop any custom handlings for default cars due to this and related issues. Any streaming or Handling API calls don't work correctly on AltV.
@DurtyFree recommended us to push this issue.

[TrashaPanda]

Alt.Natives.ModifyVehicleTopSpeed(vehicle, 1); <--- add this after all your handling adjustments.

profit.

have a nice day.

https://discord.com/channels/371265202378899476/576771706119520287/1258460157927755899 proofs (assuming ur in AltV disco)

[mrgharabaghi]

@xxshady

As TrashaPanda said, by calling alt.Player.local.vehicle.setupTransmission() or native.modifyVehicleTopSpeed(vehicle.scriptID, 1) after driveMaxFlatVel, the value of driveMaxFlatVel will affected on vehicle.

Using native.modifyVehicleTopSpeed is a common way on FiveM. Take a look at this.

I think it's a good time to close this issue.

alt.Player.local.vehicle.handling.initialDriveMaxFlatVel = 1000;
alt.Player.local.vehicle.setupTransmission();