This is a paid asset, but now you can download Mobile Garage Vol. 2 Free.
Detail this asset from Unity Store: Original Link
Mobile Garage Vol. 2 v1.0
This package contains a garage area. This is mobile optimized having low draw calls and low triangle count. It is easy to use. Average triangle count that shows on camera is around 35k-40k.
There are 37 unique props prefab are included to use. Those prefab contains wrecked car, tires, lights etc.
Package includes
complete garage scene
Baked Kighting
TOne skybox
Particles
background building
Materials are easy to change. There are only 5 materials has been used for the scene. Floor and Car Floor Textures are 1024×1024 and others are 4K resolution.
Garage models are in single mesh and divided in many parts to reduce draw call