30 vehicle sounds for Unity. Car engine loops, start, stop, rev, acceleration and pass-by; motorbike and truck sounds; skids, crashes, glass, doors, keys, horns, a police siren, air brake, reversing beeper, helicopter and bicycle bell.

What's inside

• 30 mono WAVs at 48 kHz, 24-bit, imported as AudioClips in nine category folders.

• Six seamless loops: idle and cruising engines, indicator, siren, beeper and helicopter.

• A soundboard demo with category tabs and a button per sound.

• CC BY 4.0: commercial use, modification and sharing allowed with attribution. Credit: Vehicle SFX Free by heyheythere - CC BY 4.0. The package includes the full license in LICENSE.txt.

Installation

Import vehicle-sfx-free-1.0.0.unitypackage and open Assets/VehicleSFXFree/Demo/L_VehicleSFXFreeDemo.unity. The demo needs Unity 6.3 or later and uses IMGUI, with no input package required. Play clips with AudioSource.PlayOneShot. The WAV files also work in earlier Unity versions.

In the Unity package: every sound as an AudioClip, a folder per kind, and a demo scene with a button per sound.

The Python code that synthesises every sound and the demo's C# scripts were written with the help of AI (Anthropic's Claude); no generative audio model, no samples, no recordings. Every sound passes an automated check for clipping, clicks, silence and loudness.

Third-party component details are documented in Third-Party Notices.txt in the Unity package.