futuristic metro train 3d model

AAA compact futuristic cyberpunk metro train, medium realistic metro length (not small), strict engineering sci-fi design, non-tube asymmetric body, modular industrial structure with visible load frame and central spine, hard-surface modeling. MUST be separated functional parts: chassis, roof rail connector, underbody magnetic levitation rings, doors, windows, interior cabin. Doors must be separate sliding mechanical units for animation. Interior must include simple futuristic seating rows. Windows aligned with structure as separate panels. No wheels, magnetic levitation system with visible support structure and energy stabilization rings. Neon integrated into seams only (cyan magenta blue), controlled cyberpunk glow. Clean optimized game asset, under 20k triangles, Roblox-ready FBX.