LEGO 42140 Technic App controlled tracked vehicle
Kids aged 9 and up will have twice the fun with this LEGO® Technic Transformation Vehicle with App Control (42140). The toy car turns around when it hits a wall, revealing the second vehicle – new for LEGO Technic sets. No wall? No problem! Children can also invert the model themselves. On one side you will find a racing car with tracks. The other side is a tracked reconnaissance vehicle. The vehicles are equipped with suspension and a cockpit. The reconnaissance truck also has a loading platform.
Control with the app
Kids will love controlling their vehicle and completing fun challenges with the CONTROL+ app. The app experience is different for each vehicle and when the model is flipped the screen changes too.
A great introduction to technology
LEGO Technic building models feature realistic movements and mechanisms, making them great gifts for LEGO builders interested in technology.
- 2-in-1 fun – build the first ever double-sided vehicle in LEGO® Technic history with this LEGO Technic Transformation Vehicle with App Controls (42140): a race car and tracked exploration vehicle in one
- Watch the model turn around! – the vehicle turns itself around when it hits a wall, but can also be turned over by hand. On one side you will find a colorful racing car and on the other side an orange scout truck
- CONTROL+ app – kids can use the app to control the vehicle, complete fun challenges and view stats. The app automatically switches to a different screen when the model is flipped
- Designed for ages 9 and up – this app-controlled, double-sided vehicle features suspension, cockpits and tracks on both sides, plus a cargo box on the exploration truck
- Suspension – both vehicles have a bogie, which allows the tracks to conform to uneven surfaces
- Shock Absorbers – 2 shock absorbers provide the function of changing the shape of the vehicle when it is turned over. The set also includes 2 large motors and 1 hub
- Dimensions – This double-sided 360° vehicle measures over 4” (12cm) high, 10” (26cm) long and 8” (20cm) wide
- Learning through play – the world of LEGO® Technic sets consists of advanced building toys for LEGO fans who are ready for a new building challenge
- High quality – LEGO® Technic parts meet strict industry standards, ensuring they are consistent, compatible and connect and take apart easily
- Safety first – LEGO® Technic pieces are dropped, heated, crushed, twisted and analyzed to ensure they meet strict global safety standards
EAN: 5702017155784
42142, 42143, 42144, 42145, 42146, 42147, 42148, 42149, 42150, 42151, 42152, 42153, 42154, 42155

For all ages
LEGO Technic is for everyone
LEGO Technic is for young children but also for adults. There is a LEGO Technic set for everyone.
42165
Mercedes-AMG F1 W14 E Performance Pull Back
Race around the virtual race track with the LEGO 42165 Mercedes-AMG F1 W14 E Performance Pull-Back! Build this impressive Formula 1 car with pull-back function and race in style. Perfect for car enthusiasts and LEGO fans. Buy now and experience the excitement of the race track. #LEGO #MercedesAMGF1 #PullBack #Race Car #Building Fun #Speed
LEGO 42169
NEOM McLaren Formula E racing car
Unleash the power of speed with the LEGO 42169 NEOM McLaren Formula E Race Car! Build this impressive electric racing car with realistic details and authentic features. Perfect for racing fans and LEGO enthusiasts. Buy now and experience the excitement of Formula E in a unique building experience. #LEGO #NEOM #McLaren #FormulaE #Race Car #Building Fun

CARS from LEGO Technic
Steering, suspension, real running engines... LEGO Techni cars are amazing

VIEW ALL LEGO TECHNIC SETS
Whether you are looking for a challenging... or very challenging LEGO job... look at LEGO Technic and you will find what you want

LEGO Technic trucks
Build the most beautiful trucks and trucks from LEGO Techic. Great sets for lovers of transport and everything that has wheels

LEGO building instructions
You can build LEGO Technic sets according to the building instructions, but you can also combine all LEGO Technic sets yourself and make something great out of them
About LEGO® Technic: Real building
Take your builds to the next level with our iconic toy cars and trucks and construction toys! Discover vehicles and machines packed with realistic features and movements.
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LEGO Green 4x4 Mercedes-Benz Zetros Trial Truck 4X4 42129 Technic
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LEGO Cat D11 Bulldozer 42131 Technic
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LEGO Superfast Drag Racer 42050 Technic
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Ferrari Daytona... one of the Technic cars
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LEGO Technic Car
Technical LEGO car, sports cars and off-road vehicles Discover the power of...
What is LEGO Technic?
The very first LEGO® Technic sets in 1977 included forklift, tractor and crane toys for children looking for a more challenging LEGO building experience with a brand new range of LEGO elements. Since then we've created hundreds of sets with wonderfully complex mechanisms in hugely advanced models for both children and adults to enjoy. This journey has also led us to create a 1:1 scale sports car in recent years, in our ongoing mission to build for real!
FEATURED FOR YOU!

McLaren Formula 1™ Racing Car
Ignite your passion Get ready for the ultimate challenge: building an authentic LEGO® Technic™ version of the McLaren Formula 1™ racing car.
FREQUENTLY ASKED QUESTIONS ABOUT TECHNICAL LEGO SETS
What is the most difficult LEGO Technic set to build?
There are several LEGO Technic sets designed for adults! For example, there is the App-Controlled Cat® D11 Bulldozer, one of our construction toys that consists of no fewer than 3854 parts! Just by taking one look at it you can immediately see how difficult it is to build it. We find another 18+ set with our motorbike toys: the devilishly difficult BMW M 1000 RR.
Be sure to check out the LEGO Technic Ultimate Car Concept series, where we create our most authentic replicas of famous car models. The latest in this series of specialized car toys is the Ferrari Daytona SP3.
When we talk about challenging LEGO buildings in general, the 1:1 LEGO Bugatti Chiron probably takes top honors. This took no less than 6 months, 13,000 hours of work and more than 1,000,000 parts... and finally he could actually drive! Read more about it here .
Is LEGO Technic fun?
Naturally! In any case, if you think that F1 cars, fast shark monster trucks, remote-controlled vehicles or the world's most incredible supercars can be considered 'fun LEGO sets'...
What age is LEGO Technic intended for?
LEGO Technic sets are the perfect gift for all children and adults. And like our entire range, these toys are just as suitable for girls as for boys.
Is LEGO Technic for adults?
Yes, we have several LEGO sets for adults in our LEGO Technic range. These include race car models, app-controlled bulldozers and motorbike models. You will find our full range of 18+ LEGO Technic sets on this page.
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