This pack could be a good start to develop any racing game or implement into your existing project!
This asset pack contains the fully set-up cop and civilian vehicles. They all have engine sounds, police siren sound and light flashes (only sport cars). The cars also have low-poly interior. All materials are well optimized and set up with material instances. You can change them at runtime. All the windows are separate objects which you can break with a script (material is ready).
You can also use animated shadow driver in your game.
Video is here: https://youtu.be/cP_9uCDohYQ
Collision: Automatically generated, per-poly
Vertex Count: up to 53144
Number of Meshes: 5
Number of Materials and Material Instances: 33
Number of Textures: 9
Supported Development Platforms: All
Supported Target Build Platforms: All