1. Asset: Modern European 4-door police patrol sedan (4.85 m x 1.86 m x 1.58 m, wheelbase 2.82 m, Forge Garage v2 hierarchy with 11 mesh nodes and 8 empty locators).
2. Triangle count: 63,084 triangles total across Body, Lightbar, SteeringWheel, Wheel_FL/FR/RL/RR, and Door_FL/FR/RL/RR (packed Draco GLB size 530 KB / 0.52 MB).
3. Materials (5): Paint (baseColorFactor [0.86, 0.88, 0.92], clearcoat 1.0, roughness 0.05), Trim, Livery (blue/red reflective stripes and generic POLICE markings), Glass (alpha BLEND), Lamps (emissive).
4. Texture sizes: Paint base/normal 1024x1024, Paint ORM 512x512; Trim base/normal 1024x1024, Trim ORM 512x512; Livery base/normal 1024x1024, Livery ORM 512x512.
5. Poly Haven CC0 textures used: metal_plate (diff, nor_gl, arm), rubber_tiles (diff, nor_gl, arm), fabric_leather_02 (diff, nor_gl, arm), asphalt_02 (diff, nor_gl, arm).
6. Differences from reference: Underbody chassis and engine bay are sealed simplified pans rather than full mechanical subframes, and door inner cards use low-poly game contours to stay within the 50k-95k triangle and 1.5 MB GLB budget.