more realistic settings, changed engine sound

Car simulation/Audio/EngineSound.cs

@@ -20,7 +20,7 @@ namespace Car_simulation.Audio
 
         // Engine harmonics
         private readonly float[] _harmonicMultiples = { 1f, 2f, 3f, 4f };
-        private readonly float[] _harmonicAmps = { 0.3f, 0.6f, 0.4f, 0.2f };
+        private readonly float[] _harmonicAmps = { 0.3f, 0.6f, 0.2f, 0.4f };
         private readonly float[] _harmonicPhases = new float[4];
 
         public EngineSound()
@@ -34,7 +34,7 @@ namespace Car_simulation.Audio
         {
             _currentRPM = rpm;
             _currentThrottle = throttle;
-            _volume = 0.1f + 0.4f * throttle;
+            _volume = 0.1f + 2e-4f * throttle * rpm;
         }
 
         public void StartSound()

Car simulation/Core/Components/Drivetrain.cs

@@ -8,7 +8,7 @@ namespace Car_simulation.Core.Components
         public WheelSystem WheelSystem { get; private set; }
 
         private int _currentGear = 1;
-        public float[] GearRatios { get; set; } = { 3.8f, 2.5f, 1.8f, 1.3f, 1.0f, 0.8f, 0.65f };
+        public float[] GearRatios { get; set; } = { 3.8f, 2.5f, 1.8f, 1.3f, 1.0f, 0.8f};
         public float FinalDriveRatio { get; set; } = 4.0f;
         public float Efficiency { get; set; } = 0.95f;
         public float ClutchEngagement { get; set; } = 0f;

Car simulation/Core/Components/WheelSystem.cs

@@ -7,7 +7,7 @@ namespace Car_simulation.Core.Components
         // Physical properties
         public float Radius { get; set; } = 0.3f;
         public float WheelInertia { get; set; } = 2.0f;
-        public float CarMass { get; set; } = 1500f;
+        public float CarMass;
         public int WheelCount { get; set; } = 4;
         public int DrivenWheels { get; set; } = 2;
 

Car simulation/Core/Models/Car.cs

@@ -8,7 +8,7 @@ namespace Car_simulation.Core.Models
     {
         // Basic properties
         public Vector2 Position = new Vector2(0, 0);
-        public float Mass { get; set; } = 2000f;
+        public float Mass { get; set; } = 1400f;
 
         // Inputs
         public float ThrottleInput = 0f;