This is a free-to-use demonstration from “UNDERPOLY: Watercraft Collection” (NOT RELEASED YET)
Initially, this vehicles are made to work in the Unity Engine with specific Shader Graphs, although it have some particularities, you can easily adapt them to work in your projects.
Number of Polygons: 8,214 Polygons.
Number of Parts: 9 Separated Parts.
Number of Materials: 4 Materials.
Number of Textures: 2 Textures.
Texture Dimensions: 256×256.