Real-Build Mode • ONLY real LEGO parts • ONLY legal LEGO geometry How to read these plans

1964 Alfa Romeo Giulia TZ1

Tubolare Zagato (tubular spaceframe) • Zagato alloy body • Coda Tronca (Kamm tail) • Double-Bubble roof option • Autodelta competition intent.

Default LEGO1 car colors: Forest Green body + Tan roof/trim (you can override below).
Status: Ready • Outputs stay blank until you press Generate • Use “Set Active” then “Copy Active”.
Level 1 — Snapshot Build Brief Paste to ChatGPT/Copilot • quick build intent
ChatGPT Copilot
Level 2 — Engineering Build Spec Structure, legality, validation expectations
ChatGPT Copilot
Level 3 — Executable Build Instructions Deterministic, shop-floor safe steps
ChatGPT Copilot
Level 4 — Product Pack + BOM Plain BOM + cost @ $0.07/brick + listing pack
ChatGPT Copilot

Parts List Filter + Cost Analysis

This list is generated with the plan pack. Use filters to quickly find parts. (Design IDs shown; Element IDs vary by color.)
Press Generate to populate the parts list…
Brick Count: —
Estimated Cost ($0.07/brick): —
Active Box: L1
Real-Build Update Notice: If you ever see a duplicate generator for the same car, use the one labeled as the updated Real-Build logic version. If your logic is already current, it will produce build plans (not a “new generator”).

Image & Build Disclaimer: Our real-world build plans are designed with the help of AI, and while we aim for accuracy, minor errors or inconsistencies may occur. Part fit, stability, colors, and availability may differ from renders, and some substitutions may be required. Use of any plans, generators, or files is at your own risk. TacoCat in Texas is not liable for issues arising from site use, and is not affiliated with or endorsed by LEGO®. Please verify suitability and safety before building. After generating your plans, please ask an AI for an “End of LEGO Brick Build Image” to prototype the model.

Some rendered images may show colors or finishes (chrome, metallic, etc.) that are not currently produced by LEGO. Substitution notes are included.
LEGO1 • OK idle