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🚗💨 Flip, race, and conquer—build your adventure on the go!
The LEGO Technic App-Controlled Transformation Vehicle 42140 is a 772-piece building kit that creates a versatile 2-in-1 remote control car. Measuring approximately 10" x 7.5" x 4.5", it features a unique double-sided flipping mechanism and is controlled via a free smartphone app. Designed for kids 9 and up, this high-quality LEGO set combines hands-on STEM learning with dynamic off-road and race car play, powered by 6 AA batteries (not included).







| ASIN | B09JKXJN2J |
| Additional Features | App-Controlled Transformation and Flipping Mechanism |
| Age Range Description | Kid |
| Best Sellers Rank | #198,101 in Toys & Games ( See Top 100 in Toys & Games ) #6,257 in Toy Building Sets |
| Brand Name | LEGO |
| Color | Multicolor |
| Customer Package Type | FFP |
| Customer Reviews | 4.7 out of 5 stars 490 Reviews |
| Educational Objective | Team Building Skills |
| Global Trade Identification Number | 00673419358569 |
| Included Components | LEGO Building Elements |
| Item Dimensions | 3.7 x 10.31 x 15.04 inches |
| Item Weight | 2.6 pounds |
| Manufacturer | LEGO |
| Manufacturer Part Number | 6379489 |
| Manufacturer recommended age | 9 years and up |
| Material Type | Plastic |
| Model Name | technic app-controlled transformation vehicle |
| Model Number | 42140 |
| Number of Batteries | 1 AA batteries required. (included) |
| Number of Items | 1 |
| Operation Mode | App-Controlled |
| Power Source | in |
| Scale | LEGO® TECHNIC |
| Size | Standard |
| Subject Character | Automatic |
| Theme | Vehicle |
| Toy Vehicle Form | Car |
| UPC | 673419358569 |
| Unit Count | 772 Count |
V**R
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!
J**E
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.
W**I
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.
V**8
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.
M**.
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.
D**G
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.
J**D
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.
A**R
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!
A**M
Lego sempre supera as expectativas!
Montagem divertida, bela experiência que tive junto com a minha filha, vai muito além da diversão, instiga a curiosidade e a criatividade, recomendo!
L**.
Exelente
Exelente, para regalar
N**E
Technically challenging
I found this to be too technically challenging to put together consequently it has never been finished and doesn't run. Good quality but not good value for money.
C**D
Next level lego
Bought this as a birthday gift for my son. He loves legos and making things work. He got to build the buggy, download the app and drive it around the house. Its kept him busy for hours, now he's building obstacle course for it. This is an awesome gift.
V**E
Super amusant
Guide de montage facile à utiliser et facile à manœuvrer avec l’application
Trustpilot
1 month ago
1 month ago