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LEGO

Lego Technic App-Controlled Transformation Vehicle 42140, Off Road Remote Control Car, Building Car Kit That Flips, 2in1 RC Truck and Race Car Toy, Great Gift for Boys, Girls, Kids Who Love RC Cars

  • Based on 489 reviews
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Monday, Oct 26
Order within 14 hours and 28 minutes
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Features

  • 772 plastic pieces
  • Completed vehicle measures approx. 10"L x 7.5"W x 4.5"H
  • Double-sided vehicle flips when it hits a wall or other obstacle
  • Control the vehicle using free downloadable smartphone app - see item package
  • Requires 6 AA batteries, not included

Description

Build and play with 2 vehicles in 1 model with this App-Controlled Transformation Vehicle that flips when it hits a wall. On one side of the model is an aerodynamic tracked racer. On the other side is a tracked exploration vehicle. Use the CONTROL+ app to drive the model. Both vehicles feature suspension, a cockpit and tracks. The pop-up function changes the shape as the vehicle flips. Kids can explore a host of engineering concepts as they build and play with this cool model. Makes a great gift idea for kids who love fast-paced vehicle action.

Brand Name: LEGO


Age Range Description: Kid


Model Name: technic app-controlled transformation vehicle


Included Components: LEGO Building Elements


Number of Items: 1


Model Number: 42140


Customer Package Type: FFP


Unit Count: 772 Count


Global Trade Identification Number: 69


UPC: 673419358569


Manufacturer: LEGO


Manufacturer Part Number: 6379489


Manufacturer recommended age: 9 years and up


Power Source: in


Additional Features: App-Controlled Transformation and Flipping Mechanism


Operation Mode: App-Controlled


Scale: LEGO® TECHNIC


Number of Batteries: 1 AA batteries required. (included)


Educational Objective: Team Building Skills


Toy Vehicle Form: Car


Color: Multicolor


Theme: Vehicle


Subject Character: Automatic


Item Weight: 2.6 pounds


Size: Standard


Item Dimensions: 3.7 x 10.31 x 15.04 inches


Material Type: Plastic


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Oct 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Good item. Grandson had fun putting it together, and enjoyed playing with it even more!
My grandson, really enjoyed making this. Put a piece in wrong and had to go back and fix it, but overall a good Christmas gift! Still uses it today!
Reviewed in the United States on November 25, 2025 by Vicki Miller
    • Amazing gift
High quality as expected from Lego and went together very easily. Ton of fun once built and provided many hours of enjoyment driving it around the house and into the walls. If you are debating getting this or a no name brand go for this as it is really worth it.
Reviewed in the United States on January 1, 2024 by Jackie
    • Simply AWESOME Lego set
This is a discontinued model, and when we went to Legoland to look for it, the sales associate said it was their favorite LEGO kit of all time. Sold! Definitely a challenge, but that is part of the fun. Two cars in one because it flips over. We keep it indoors as dirt might foul it up and it is too awesome to subject it to damage. ... show more
Reviewed in the United States on January 30, 2024 by Whistler ski
    • Awesome affordable set
If you want a good Lego set and a remote control toy, then this set is a perfect purchase. The vehicle is very flexible and agile, specifically designed for flip overs. Does not drag on floor when flips to any side, it properly readjusts and has tiny wheels to avoid any dragging. The tracks have little rubber tips to grab onto the floor. ... show more
Reviewed in the United States on December 28, 2023 by Vlad3368
    • Really cool build
Six year old had his heart set on this. I was hesitant because it’s meant for an older kid but finally caved and was amazed that he did it himself! Really cool build, the app works great and gives another layer to play- we make obstacle courses for it and watch it flip and turn.
Reviewed in the United States on January 18, 2024 by M.J.
    • Fun little app controlled tank toy
This reminded me of the Tyco Rebound from the 90s because it can drive up a wall and flip over, it's pretty fun to play with. The build was pretty good, not too challenging or too easy. The controls are a little weird because you control the left and right tracks by sliding your left and right fingers up and down, but because it's a phone screen you don't have that tactile feedback you would have with a controller with buttons or joysticks. It's fun though. I hoped my cat would play with it, but the motors make a high pitched whine that scares him. It uses 6 AA batteries, which is kind of a lot. I got some rechargeables and there is a battery meter in the app, it doesn't seem to draw a lot of power. ... show more
Reviewed in the United States on May 10, 2022 by D. Long
    • great for tech kid
my son loves it set. it was a great mix between he love to put legos together and his love of tech items. So far it has worked well. few issues getting the app setup the first time but think it was an issue with the batteries in the car. Fun to play with and so far seems to get around anywhere.
Reviewed in the United States on February 14, 2025 by Joshua and Sharon Hood
    • Amazing! A lot of Fun!
I'll explore more of those technic ones with batteries and can move. Seems like way more fun for my son! He just keeps playing with it everyday!
Reviewed in the United States on January 19, 2024 by Amazon Customer

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