Realism Addon Gearbox

This script overhauls the default gearbox and clutch behavior, fixing numerous issues with manual transmissions, clutch simulation, engine braking, RPM synchronization, parking brake, and more — delivering a far more realistic driving feel, especially when used with a physical shifter and pedals.

Included features:

• Linear throttle (hand throttle) instead of an acceleration pedal
• Realistic clutch calculation with clutch slipping and proper clutch feel
• Gear-dependent engine braking
• H/L gear ranges, groups, and powershift support
• Constant RPM control (idle without pressing the gas pedal)
• Synchronized wheel, sound, HUD, and engine RPM
• Parking brake / handbrake with configuration options
• MP synchronization support
• FPS axis shifting assistance

No default key bindings are set — inputs must be configured manually.