Lego® Technic 42140 App-Controlled Transformation Vehicle

Current best price

LEGO 42140 is currently available from £100.99 incl. shipping at eBay. 22% below RRP (£129.99). Only one retailer in our comparison stocks it.

Updated 1 November 2026 at 21:34

Lego 42140 price comparison: where is it cheapest?

Prices incl. shipping to the UK ·

Brickfact may earn a commission when you buy through a merchant link. Commissions do not determine the order of offers. How Brickfact compares prices

iFurther information
The Lego set App-Controlled Transformation Vehicle with the set number 42140 is part of the LEGO Technic theme and is recommended for ages 9+. It was released in March 2022. The model has 772 pieces, and we estimate it takes around 2 hours to build. 98 Brickfact users have this set in their collection.
The set weighs about 1.205 kg. The box measures 15 x 10.3 x 3.7 in (38.2 x 26.2 x 9.4 cm). The recommended retail price is £129.99.
Our Brickfact Lego price comparison compares the prices of 1 shop for this set. It is currently cheapest at eBay for £100.99 including shipping. That is £0.13 per piece. With this offer you save £29.00 off the recommended retail price, a discount of 22%.
The Part-Out-Value (POV) is the sum of the average prices paid on bricklink.com for all parts of this set. It is about £157.47. You save around £56.48 if you buy the complete set at eBay instead of the individual parts on bricklink.com. The current best offer therefore has a POV rate of 1.56: the Part-Out-Value divided by the current best price on Brickfact.

Lego 42140 product data

Set Information

Set ID
42140
Theme
Pieces
772
Building Time
2 hours
Age Range
9+

Availability

Release
03/2022
Retiring Status
Retired (12/2023)

Price Information

RRP
£129.99
Insiders Points (for purchase at Lego)
1040
Part Out Value
£157.47
i

Packaging

Weight
1.205 kg
Packaging dimensions
15 x 10.3 x 3.7 in
EAN (GTIN13)
5702017155784

Popularity with Brickfact users

users have this set
98

98 Brickfact users have App-Controlled Transformation Vehicle in their collection.

Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of 2 November 2026.

Lego 42140 price trend

Average sale price on secondary marketplaces – not the new price at retailers.

Current market value
£155.68
Growth vs. RRP
+19.8 % £129.99
Range
£106.92 – £155.68
Average
£123.04

Loading price history…

Lego 42140 price history: how has the price changed?

Brickfact has been recording retailer prices since 23/10/2026. Best price so far: £100.99 (5 days ago).

Current best price
£100.99 -22% vs. RRP
Best price since 23/10/2026
£100.99 -22% vs. RRP · 5 days ago

Daily lowest prices at the tracked shops, including shipping. Gaps indicate days with no recorded price. The table lists each shop’s lowest price.

Lowest price per retailer (since 23/10/2026)

RetailerCurrentLowest priceDate
eBay LogoeBay£100.99£100.9901/11/26

Lowest price per day that Brickfact recorded at the retailers in the price comparison, including shipping where known – as in the comparison above. Amazon offers are not included in the price history.

Official Set Description for LEGO 42140 App-Controlled Transformation Vehicle

Kids aged 9+ can enjoy twice the fun with this LEGO® Technic™ App-Controlled Transformation Vehicle 42140 set. In a first for LEGO Technic sets, this vehicle toy flips over when it drives into a wall to reveal the second vehicle. No wall? No problem! Kids can turn the model over to switch vehicles. On one side is an aerodynamic tracked racer. On the other side is a tracked exploration vehicle. With suspension, a cockpit and tracks on both vehicles, plus a truck bed on the exploration truck, there’s lots for kids to discover.

Take control with the app
Kids will love using the CONTROL+ app to operate their vehicle. Using the app, they can steer the vehicle and complete fun challenges. The app experience changes for each vehicle and cleverly switches screens when the model flips.

A great introduction to engineering
LEGO Technic buildable models feature realistic movement and mechanisms, making them a top gift idea for any LEGO builder who is interested in engineering.

  • 2-in-1 fun – Build the first flip vehicle in LEGO® Technic™ history with this LEGO Technic App-Controlled Transformation Vehicle (42140) set, featuring a tracked racer and tracked exploration vehicle
  • See the model flip! – The vehicle flips over when it hits a wall or can be flipped by hand to reveal the brightly colored tracked racer on one side and an orange exploration truck on the other side
  • CONTROL+ App – Kids can use the app to steer the vehicle, complete fun challenges and see driver stats. The app automatically switches screens to match the vehicle when the model flips
  • Designed for kids aged 9+ – This app-controlled flip car toy features suspension, cockpits and tracks on both vehicles, plus a truck bed on the exploration truck for kids to explore as they play
  • Suspension – Both vehicles have bogie suspension, which allows the tracks to adapt to uneven surfaces
  • Shock absorbers – 2 shock absorbers drive the ‘pop-up’ function that changes the shape of the vehicle when it flips over. The set also includes 2 large motors and 1 hub
  • Dimensions – This 360° double-sided vehicle measures over 4.5 in. (12 cm) high, 10 in. (26 cm) long and 7.5 in. (20 cm) wide
  • Learning through play – The world of LEGO® Technic™ sets offers advanced building toys for LEGO fans who are ready for a new building challenge
  • High quality – LEGO® Technic™ components meet rigorous industry standards to ensure they are consistent, compatible and connect reliably every time
  • Safety first – LEGO® Technic™ components are dropped, heated, crushed, twisted and analyzed to make sure they meet strict global safety standards

Building Instruction for LEGO 42140 App-Controlled Transformation Vehicle

LEGO 42140 Frequently Asked Questions

How much does LEGO 42140 App-Controlled Transformation Vehicle cost?
The lowest price in the Brickfact price comparison is currently £100.99 incl. shipping at eBay. That is 22% below the RRP of £129.99.
Where can I buy LEGO 42140 cheapest?
Only one retailer in the Brickfact price comparison currently stocks LEGO 42140: eBay (£100.99).
Is LEGO 42140 still available?
LEGO has retired 42140 App-Controlled Transformation Vehicle. New copies are still available at 1 retailers in our price comparison while stocks last.
What age is the LEGO Technic App-Controlled Transformation Vehicle 42140 set suitable for?
The LEGO Technic App-Controlled Transformation Vehicle 42140 set is suitable for kids aged 9 and above.
What is unique about the LEGO Technic App-Controlled Transformation Vehicle 42140 set?
The LEGO Technic App-Controlled Transformation Vehicle 42140 set is the first LEGO Technic set that flips over when it drives into a wall, revealing a second vehicle.
Can the LEGO Technic App-Controlled Transformation Vehicle 42140 set be flipped manually?
Yes, the LEGO Technic App-Controlled Transformation Vehicle 42140 set can be flipped manually to reveal the tracked racer on one side and the orange exploration truck on the other side.
What can kids do with the CONTROL+ app for the LEGO Technic App-Controlled Transformation Vehicle 42140 set?
Using the CONTROL+ app, kids can steer the vehicle, complete fun challenges, and view driver stats. The app experience changes for each vehicle and switches screens when the model flips.
When was LEGO 42140 cheapest?
Since tracking began on 23/10/2026, the lowest shop price recorded by Brickfact for LEGO 42140 was £100.99 on 28/10/2026 at eBay, including shipping. Amazon prices are not included.

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