Skip to content
Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • Building Set with People
    • Castle
    • Duplo
    • Fabuland
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
    • Model Team
    • Pirates
    • Space
    • Star Wars
    • Technic
    • Town
    • Universal Building Set
    • Western
    • More Sets
    • Misc
  • USEFUL LINKS
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP
Alternate Builds Race Town Town Alternate Builds Very Small Builds 

6604 – Back A

November 25, 2020November 25, 2020 Master Builder 2275 Views

From: 6604: Formula-1 Racer
Name: TBD
Submitted by: USER
Instructions

  • Back A

  • ← 6604: Formula-1 Racer
  • 6604 – Back B →

You May Also Like

6534 – Back C

July 8, 2022July 8, 2022 Master Builder

6815: Hovertron

June 28, 2022June 28, 2022 Master Builder

6125 – Back A

April 9, 2020April 9, 2020 Master Builder

5986 – Back A

October 29, 2019April 4, 2020 Master Builder

1728 (6145) – Back A

August 1, 2023August 1, 2023 Master Builder

6891 – Back B

August 3, 2024August 3, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

897: Mobile Missile Command
Classic Space Classic Space Sets Jens Nygaard Knudsen Official Sets Small Builds 

897: Mobile Missile Command

September 14, 2019July 31, 2023 Master Builder

Year Released: 1985Designer: Jens Nygaard KnudsenBricklinkInstructions

6661: TV Van (Mobile TV Studio)
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6661: TV Van (Mobile TV Studio)

February 3, 2022February 3, 2022 Master Builder
730: Steam Shovel with Carrier
Construction LEGOLAND Medium Builds Official Sets 

730: Steam Shovel with Carrier

February 21, 2024February 21, 2024 Master Builder
7302 (1416, Kabaya: Life On Mars 2): Worker Robot
Life on Mars Life on Mars Sets Official Sets Very Small Builds 

7302 (1416, Kabaya: Life On Mars 2): Worker Robot

February 25, 2025February 25, 2025 Master Builder
6804: Surface Rover
Classic Space Classic Space Sets Official Sets Very Small Builds 

6804: Surface Rover

September 25, 2019September 28, 2019 Master Builder
1555: Santa Claus Polybag
Holiday and Event Holiday and Event Sets Official Sets Very Small Builds 

1555: Santa Claus Polybag

April 28, 2023April 28, 2023 Master Builder
6236: King Kahuka
Islanders Official Sets Pirates Pirates I Pirates Sets Small Builds 

6236: King Kahuka

December 28, 2021December 28, 2021 Master Builder
6877: Vector Detector
ABCs M:Tron M:Tron Sets Official Sets Small Builds Space 

6877: Vector Detector

June 7, 2021October 14, 2024 Master Builder
6611: Fire Chief’s Car
Classic Town Fire Official Sets Town Town Sets Very Small Builds 

6611: Fire Chief’s Car

February 20, 2024February 20, 2024 Master Builder
6385: Fire House-I
Classic Town Fire Large Builds Official Sets Town Town Sets 

6385: Fire House-I

August 7, 2022August 7, 2022 Master Builder
2586: King & Throne (Chess King)
Castle Castle Sets Official Sets Very Small Builds 

2586: King & Throne (Chess King)

January 29, 2021January 29, 2021 Master Builder
375: Deluxe Basic Set
Box Marketing Blurb Large Builds Official Sets Samsonite Samsonite Sets 

375: Deluxe Basic Set

September 11, 2023April 3, 2024 Master Builder
6827: Strata Scooter
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

6827: Strata Scooter

October 13, 2021October 13, 2021 Master Builder
7255: General Grievous Chase
Episode III Official Sets Small Builds Star Wars Star Wars Sets 

7255: General Grievous Chase

March 2, 2023March 2, 2023 Master Builder
4720: Knockturn Alley
Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets 

4720: Knockturn Alley

July 9, 2024July 9, 2024 Master Builder
8000: Pit Droid
Large Builds Official Sets Technic Technic Sets 

8000: Pit Droid

September 11, 2023September 11, 2023 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

  • Adventurers
  • Aquazone
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Fabuland
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Pirates
  • Space
  • Star Wars
  • Technic
  • Town
  • Universal Building Set
  • Western
  • More Sets
  • Misc

Useful Links

  • Submit Instructions!
  • New Instructions
  • New Official Sets
  • New Alternate Builds
  • Minifigs
  • Very Small Builds (<35 pcs)
  • Small Builds (<100 pcs)
  • Medium Builds (<200 pcs)
  • Large Builds (<400 pcs)
  • Extra Large Builds (>400 pcs)
  • How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2025 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.