Update (1.1):
Fixed lod issues and added prefabs
PBR assets to create your own sky city environment and vehicles.
Full version (available here)
Features (full version):
Includes 2 example scenes (one sunny, one at night)
Complex models have lods.
PBR materials (albedo/roughness/normals).
Modular buildings, floors and vehicles
Particle effects (Flares, clouds, smoke)
Props, billboards, Foliage models.