
"A genuinely clever Technic set with a BrickScore of 74.1, the App-Controlled Transformation Vehicle earns its Recommended standing through a novel flip mechanic that consistently delights builders and drivers alike, backed by a 4.8-star average across 1,165 owner ratings, even if the drive speed and long-term novelty leave some wanting more."
The App-Controlled Transformation Vehicle earns a Recommended BrickScore of 74.1 and stands out in the Technic line for its unique dual-sided flip mechanic, where the vehicle flips end-over-end and the app automatically switches controls and color scheme to match whichever side is driving. Owner enthusiasm is high: 1,165 ratings average 4.8 out of 5 and 91% of LEGO.com respondents would recommend it. Critics acknowledge the strong parts value (76.7) and design aesthetics (74.1), though playability scores a more moderate 67.1, with reviewers noting the vehicle's speed is limited.

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"From the outside, 42140 App-Controlled Transformation Vehicle doesn't look like it has much to offer Technic purists."
Brick Fanatics"Although I am a big fan of cars, I prefer cars that look like what you see on the street. For that reason, my immediate reaction to this set wasn't great."
True North Bricks
"From the outside, 42140 App-Controlled Transformation Vehicle doesn't look like it has much to offer Technic purists."
"Although I am a big fan of cars, I prefer cars that look like what you see on the street. For that reason, my immediate reaction to this set wasn't great."
Amazon4.8
LEGO.com4.6