• Dedicated multiplayer architecture.
• Static ghost for remote cars with owner livery + floating label.
• Live wheels for remote relay ghosts.
• Fade for ghosts: translucent near the local car.
• New shaders + fixes for track materials (asphalt/dirt/ice/walls/minipads/skid).
• Sky cubemap for track modules.
• Redesigned votemap/countdown/leaderboard/chat, new Global/Map/Match chat with history.
• Compact CheckpointCard: only TIME/SECTOR/KMH with colored delta (green=better, red=worse), moved to bottom-center.
• Chat also mounts in singleplayer and is hidden in replay mode adn editor.
• New birch trees with ~95% fewer vertices (FBX 469KB→43KB / 273KB→69KB).
• Map leaderboard public name now matches the Workshop name.
• Shader fixes for Tracks V4/Legacy materials (asphalt, dirt, ice, grass_block).
• Wheel texture (reflection) fixed.
• Cooldowns now count down by delta (hot-swap immune) + logs channel state every 10s when it can't connect.
• Data-path diagnostics.
• Leaving multiplayer no longer auto-rejoins the room.
• Wheel colliders widened so the car doesn't sink
• Chat dedupes by server timestamp (no more messages re-sent across sessions).
• Hidden chat in the Editor.
• Timetable HUD removed (replaced by the new Checkpoint Data).
• Spline debug code removed.
• Temporary skid debug logs removed.
• Multiplayer still in test phase.