Editable Car Properties

This page decribes what the Editable Car/Motorcycle properties are for.

In Sandbox, these can be changed by looking at a vehicle, holding the context menu key (C by default), then right-clicking on top of the vehicle, and then clicking on Edit Properties.

General Settings

Name	Description
HeadlightColor	Sets the color for the vehicle's headlight(s)

Wheel Properties

Name	Description
TireSmokeColor	Sets the smoke color for the vehicle's tires
WheelRadius	Sets the radius for all of the vehicle's wheels
BrakePower	The amount of braking force that the wheel brakes can apply. This is partially affected by ForwardTractionMax.

Steering Settings

Name	Description
MaxSteerAngle	Max. angle that the steerable wheels can turn
SteerConeChangeRate	How fast does the steering angle change?
SteerConeMaxSpeed	Multiply MaxSteerAngle with SteerConeMaxAngle when going at this speed
SteerConeMaxAngle	Multiply MaxSteerAngle with this value when going as fast as SteerConeMaxSpeed
CounterSteer	When slipping sideways, multiply MaxSteerAngle with this value, and turn towards the slip direction

CounterSteer only fully applies if the driver's steer input is 0.

Engine Properties

Name	Description
TurboCharged	Is the engine equipped with a turbocharger?
FastTransmission	Is the delay between gear switch and throttle reduced?
MinRPM	Minimum engine flywheel RPM
MaxRPM	Maximum engine flywheel RPM
MinRPMTorque	Torque produced by the engine when spinning at MinRPM
MaxRPMTorque	Torque produced by the engine when spinning at MaxRPM
DifferentialRatio	Torque/angular velocity conversion ratio between engine and transmission
TransmissionEfficiency	How much engine torque is kept after going through the transmission?
PowerDistribution	How much transmission torque is sent to the front/rear wheels?

Higher DifferentialRatio values give more torque, but reduces speed. Lower DifferentialRatio values give more speed, but reduces torque.

Suspension Properties

Name	Description
SuspensionLength	Length of the spring's travel path
SpringStrength	How much force does the suspension spring apply to counteract gravity?
SpringDamper	How difficult is it for the spring to move?

Traction Properties

Forward Traction

Name	Description
ForwardTractionMax	Max. force the transmission/brake can apply to the ground. When the force exceeds this value, the wheel will slip
ForwardTractionBias	Changes the ForwardTractionMax balance between the front and rear wheels

When ForwardTractionBias is 0, ForwardTractionMax will be the same for all wheels.

When ForwardTractionBias gets closer to 1, ForwardTractionMax will be focused on the front wheels. When ForwardTractionBias gets closer to -1, ForwardTractionMax will be focused on the rear wheels.

Sideways Traction

For each wheel, the angle between the wheel's foward direction and the direction of the ground moving underneath it is calculated, that's the slip angle.

If that slip angle is equal to or lower than SideTractionMaxAng, the maximum traction force that the wheel can apply is SideTractionMax.

Once the slip angle starts to get higher than that however, the maximum traction force shifts towards SideTractionMin.

In other words: Small slip angle, lots of traction. High slip angle, less traction.

Name	Description
SideTractionMultiplier	How much of the wheel's sideways speed is converted to a counteracting force (traction)?
SideTractionMaxAng	The max. slip angle where SideTractionMax still applies
SideTractionMax	The max. traction force that the wheel can apply when side slip angle is at or below SideTractionMaxAng
SideTractionMin	The max. traction force that the wheel can apply when side slip angle is 90 degrees (directly sideways)