Lego Technic 42140 Rally Car MOC
Rebuild your Lego Technic "Transformation Vehicle" set 42140 into a remote-controlled "Rally Car" alternative model using these building instructions and go tear those dirt roads! No additional parts needed, just the 42140 set!
You can also get this MOC's .pdf building instructions from my own website at DavejspTechnicMOCs.com !
Functions:
- Remote-controlled drive and steering.
Worth mentioning aspects:
- It's rear-wheel drive with a gear ratio of 1:1.67 driving both rear wheels through a solid axle.
- Decent ground clearance (2 studs) given the MOC scale, it's suitable for light off-roading (watch the video).
- The button to turn on the hub is easily accessible through the cabin.
- Batteries can be easily swapped from below the car
- Needs a custom profile from the Powered Up app to be controlled. Detailed steps are provided within the MOC building instructions for this as well.
Digital building instructions sample:

Photos:






NO BRICKS INCLUDED! - YOU'LL GET ONLY THE DIGITAL BUILDING INSTRUCTIONS AND A PARTS LIST.
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Keywords:
Lego Technic, MOC, AFOL, building instructions, toy, building blocks, racing, remote-controlled, motorized, alternative model, alt build, lego 42140, off-road, rebuild, c-model, rc cars, rally