Covered cars pack is excellent props package for your maps.
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This package contains: 6 well-optimized car models.each of which contains three LODs (1000\\500\\200) and collision collider.
Three sets of high quality (4k) PBR textures for each. (diffuse, specular_gloss, normal, AO)18 preconfigured and prepared to work prefabs.also included the test scene.