Extremely detailed engine sound recorded every 100 rpms in 4+1 channel format with 4 synchronized microphones placed around the engine & the exhaust each interior switch, stick and warning tone recorded from the real truck and implemented into the game (e.g. blinkers, blinker stick, retarder stick, light switch, electric windows, etc.) Dynamic idle sound Warning tones when turning off the engine without parking brake or with lights on Air sounds when engaging/disengaging the parking brake For v 1.48