This is a paid asset, but now you can download Minicar Race 4 Environments Pack Free.
Detail this asset from Unity Store: Original Link
Minicar Race 4 Environments Pack v1.0
Minicar Race 4 Environments Pack contains all you need to create minicar race environments : walls, floors, furnitures and objects.
MOBILE FRIENDLY
Desktop and Mobile Ready
4 Demo tracks included
350 + ready to use prefabs (285 models)
4 environments : Bedroom, Kitchen, Bathroom, Beach
Various prefabs : Wall, floors, furnitures and objects.
Colliders ready.
Lightmap ready.
Lights and Lighting presets.
Mesh combiner script included to optimize framerate.
Desktop and Mobile Ready
Complete documentation and tutorials:
– Create a room
– Create and paint sand floor terrain
– Light, lightmaps and lightings presets.
– Camera effects
– Use Combiner script
– Export to Mobile