Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download 60 Fantastic Race Cars Pack Free.
60 Fantastic Race Cars Pack v1.0
Requires Unity 4.6.4 or higher.
A low poly amazing fantastic race cars pack that can be used for any type of projects. Models have detailed realistic textures. Includes diffuse, normal and specular mapped.
Suitable for mobile applications and greatly optimized.
The wheel and interior meshes have been made separately.
Absolutely must-have asset for your game!
Each car contain 2 LOD groups.
Package contain 60 fantastic race cars