Technic

NASA Mars Rover Perseverance

A real working Mars rover in Technic form, with genuinely clever steering.

Brick Rated Score

4.1/5

Set 42158 · 2023

Pieces1,132

Minifigsn/a

Year2023

Set number42158

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The verdict

I almost skipped this one, if I'm honest, because I assumed it was another flat NASA display piece.

Then I hit the wheels and it won me over. The steering is the whole reason to own it: you can push it around in drive mode, or flip it into turn mode and watch all six wheels rotate so it pivots on the spot, exactly like the real thing. It's a display model with a working brain, and that combination is rarer than it sounds.

Best for: Space nerds who want a display piece that actually does something

The full review

What it is

This LEGO® set is a 1,132-piece Technic recreation of Perseverance, the rover NASA landed in Jezero Crater in February 2021 to hunt for signs of ancient life. What makes it more than a shelf ornament is how much of it moves. You get 360-degree steering, a rocker-bogie suspension that keeps all six wheels planted on uneven ground, a poseable robotic arm, and a little Ingenuity helicopter riding along underneath. The reviews I trust land it around four out of five on Brickset, and after reading through the build notes I think that's fair, maybe a touch low.

The catch

Here's the honest part on price and quirks. It runs $99.99, which is reasonable for the piece count and the functions, though people rightly point out the Apollo Saturn V gives you more set for a bit more money. The stickers are the real gripe. There are 19 of them, they're fiddly, and worst of all the gold trim on Ingenuity is done with stickers rather than proper metallic parts, which feels like a shortcut on the prettiest bit of the whole model. One sticker sits over a raised ridge and refuses to stay flat, so you'll see people complaining about it peeling months later. The wheels are hard plastic when something rubberier would have looked closer to the real tires, and the arm has a bit more flop than you'd like. None of these are dealbreakers, but they're the reasons this isn't a perfect score.

Who it's for

If you love space, or you want a Technic model that does something on the desk instead of just sitting there, this is an easy yes. It builds in about four hours, it never gets so complicated that a curious ten-year-old couldn't follow along, and the payoff in that last bag when the steering comes alive is genuinely satisfying. If you're a hardcore Technic person chasing gearbox complexity or pneumatics, you might find the engineering a little gentle. And if stickers make you break out in a rash, go in knowing what you're signing up for. For everyone else, this is one of the more charming functional models LEGO has put out, and the fact that it's a real machine currently rolling around Mars makes it hit differently.

The parts story

What the build is actually like, and the pieces worth knowing about.

The build splits across four bags and paces itself nicely. You start with the rover's interior and the Ingenuity helicopter, then move into the internal mechanics and the outer shell, which is where you feel the model getting big and a little cumbersome to handle. Bag three is the wheels, and each suspension arm attaches at its own angle, so there's some patient fiddling before it all lines up. Bag four is the best part by a mile, because that's when the tools, instruments and the steering mechanism come together and the whole thing suddenly does something. The two-mode wheel system is the technique to savor: a drive mode with front and rear steering, and a turn mode where all the outer wheels swivel so it rotates on the spot, driven through cardan-shaft steering just like the real rocker-bogie setup.

On pieces, this leans functional rather than a parts-pack goldmine, but there are things to like. The printed 1x1 round tiles are tied to the LEGO Technic AR app, and while purists note they don't perfectly match the real rover's look, they're a neat touch. You'll notice some white inconsistency, with the connector pins reading whiter than the more yellowish structural panels, which is a known Technic annoyance. The value story is solid at roughly nine cents a piece for a model this functional, and the little spinning-rotor Ingenuity is a genuinely lovely extra that most sets this size wouldn't bother including.

Fun facts

01The real Perseverance touched down in Jezero Crater on February 18, 2021, an ancient dried-up lakebed chosen because its sediment layers might still hold traces of microbial life from billions of years ago.
02The little Ingenuity helicopter tucked under the rover represents the first aircraft ever to make a powered, controlled flight on another planet.
03The set's turn mode, where every outer wheel rotates so the rover spins in place, mirrors a real trick the actual rover uses to point itself without driving forward.
04The printed 1x1 round tiles feed into the LEGO Technic AR app, which lets you scan the model and fly a virtual Ingenuity around your room.