How many pieces are in the McLaren Senna GTR?

McLaren Senna GTR contains 830 pieces.

What age is the McLaren Senna GTR recommended for?

This set is recommended for ages 10+.

When was the McLaren Senna GTR released?

McLaren Senna GTR was released in 2021.

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🏛 Technic

Set #42123

McLaren Senna GTR

The McLaren Senna GTR is a bold and striking Technic representation of a track legend.

Before you buy

Who it's for: Ages 10+ · Intermediate build Perfect for Technic fans and car enthusiasts who enjoy a detailed and engaging building experience.
Build: 830 pieces · about 4.5 hours Build time is an estimate.
Price: $49.99 list price · 6.0¢ per piece
Availability: Retired at LEGO

★★★★☆ 4.0 community rating from 265 ratings

Fans appreciate the accurate design and engaging build experience of the McLaren Senna GTR. However, some critics point out the reliance on stickers and the lack of more advanced Technic functions.

$49.99

Check price on eBay

📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

The McLaren Senna GTR is a bold and striking Technic representation of a track legend. Capturing the aggressive lines and aerodynamic features of the real Senna GTR, this set offers a challenging build and a visually impressive display model.

This set is perfect for Technic enthusiasts and car lovers. The build provides an engaging experience with functional elements and accurate detailing, resulting in a rewarding display piece.

Skip this if you prefer minifigure-scale models or simpler building experiences. Consider Speed Champions sets for smaller, more accessible car models.

✨ New

Ask BlockTalk about this set

AI assistant with full set data

BlockTalk

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Try asking:

How does this Technic model compare to other LEGO car sets? What are the key functional features of the McLaren Senna GTR set? Is this set a good value for the price considering the piece count and complexity? How does the build experience differ from other Technic sets?

🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

830

Pieces

⏱

4.5h

Estimated Build Time

📊

Intermediate

Difficulty

📏

32cm × 12cm × 9cm

Dimensions

Build Highlights:

Detailed recreation of the McLaren Senna GTR's aerodynamic features
Functional steering and V8 engine with moving pistons
Challenging assembly process with intricate Technic components
Eye-catching display model with authentic livery and design

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

Not enough price history for a trend

Investment Grade

⏳ Retired

The McLaren Senna GTR (42123) is a retired Technic set that has the potential to appreciate in value. Its appeal to both Technic builders and automotive enthusiasts provides a solid foundation for growth. While not a limited edition, its retirement status and reasonable piece count make it a potentially good investment. However, Technic sets can be volatile, so monitor the market trends.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

⚖ Compare Similar Sets

Lamborghini Sián FKP 37

Lamborghini Huracán Tecnica

Technic • 806 pcs

$49.99

Compared to other Technic car models, the McLaren Senna GTR offers a balance of complexity and display appeal. While sets like the Lamborghini Sián FKP 37 (42115) are larger and more intricate, the Senna GTR provides a more accessible building experience at a lower price point. For those seeking minifigure-scale cars, the Speed Champions series offers more compact and playable alternatives.

📦 Parts Inventory

Official piece count: 830
Parts cataloged in this inventory: 102 unique parts, 830 pieces

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Technic Pin Conne...

Part #: 10197 2× Black

Brick Curved 4 x ...

Part #: 11153 1× Black

Technic Axle Pin ...

Part #: 11214 20× Dark Bluish Gray

Brick Curved 2 x ...

Part #: 11477 2× Light Bluish Gray

Brick Curved 2 x ...

Part #: 11477 6× Black

Technic Panel Fai...

Part #: 11946 9× Black

Technic Panel Fai...

Part #: 11946 1× Light Bluish Gray

Technic Panel Fai...

Part #: 11946 2× Blue

Technic Panel Fai...

Part #: 11947 2× Blue

Technic Panel Fai...

Part #: 11947 9× Black

Technic Panel Fai...

Part #: 11947 1× Light Bluish Gray

Technic Axle 5 wi...

Part #: 15462 2× Reddish Brown

Technic Pin Conne...

Part #: 18654 14× Black

Technic Pin Conne...

Part #: 18654 3× Light Bluish Gray

Plate Special 1 x...

Part #: 18677 3× Black

Technic Panel Cur...

Part #: 18944 2× Black

Technic Panel Cur...

Part #: 24116 2× Dark Bluish Gray

Technic Axle 3 wi...

Part #: 24316 13× Reddish Brown

Tile 2 x 3

Part #: 26603 2× Black

Technic Pin with ...

Part #: 2780 146× Black

Technic Pin Conne...

Part #: 27940 4× Blue

Technic Steering ...

Part #: 2819 1× Black

Plate 1 x 1

Part #: 3024 2× Trans-Clear

Plate 1 x 1

Part #: 3024 6× Black

Plate 1 x 1

Part #: 3024 2× Light Bluish Gray

Plate 2 x 8

Part #: 3034 1× Black

Bar 4L (Lightsabe...

Part #: 30374 2× Trans-Red

Bar 4L (Lightsabe...

Part #: 30374 2× White

Tyre 43.2 x 14

Part #: 30699 2× Black

Tile 1 x 1 with G...

Part #: 3070b 1× Black

Technic Pin 3/4

Part #: 32002 2× Tan

Technic Axle and ...

Part #: 32013 4× Black

Technic Axle and ...

Part #: 32013 5× Light Bluish Gray

Technic Axle and ...

Part #: 32013 2× Blue

Technic Axle and ...

Part #: 32014 2× Black

Technic Axle and ...

Part #: 32015 8× Blue

Technic Axle and ...

Part #: 32034 6× Red

Technic Axle Conn...

Part #: 32039 4× Blue

Technic Pin Long ...

Part #: 32054 7× Light Bluish Gray

Technic Axle 2 No...

Part #: 32062 2× Black

Technic Axle 2 No...

Part #: 32062 22× Red

Technic Beam 1 x ...

Part #: 32063 4× Black

Technic Beam 1 x ...

Part #: 32063 2× Light Bluish Gray

Technic Beam 1 x ...

Part #: 32065 1× White

Technic Axle 5

Part #: 32073 5× Light Bluish Gray

Technic Bush 1/2 ...

Part #: 32123b 8× Yellow

Technic Bush 1/2 ...

Part #: 32123b 10× Light Bluish Gray

Technic Beam 2 x ...

Part #: 32140 2× Light Bluish Gray

Technic Beam 2 x ...

Part #: 32140 16× Black

Technic Axle and ...

Part #: 32184 3× Light Bluish Gray

Technic Axle and ...

Part #: 32192 2× Light Bluish Gray

Axle Hose, Soft 11L

Part #: 32199 3× Blue

Axle Hose, Soft 16L

Part #: 32202 2× Black

Technic Gear 12 T...

Part #: 32270 2× Black

Technic Beam 1 x ...

Part #: 32278 2× Blue

Technic Beam 1 x ...

Part #: 32278 1× Black

Technic Axle and ...

Part #: 32291 4× Light Bluish Gray

Technic Beam 1 x ...

Part #: 32316 16× Black

Technic Beam 1 x ...

Part #: 32523 2× Dark Bluish Gray

Technic Beam 1 x ...

Part #: 32523 11× Black

Technic Beam 1 x ...

Part #: 32523 2× Light Bluish Gray

Technic Beam 1 x ...

Part #: 32524 2× Blue

Technic Beam 1 x ...

Part #: 32524 5× Black

Technic Beam 1 x ...

Part #: 32524 4× Light Bluish Gray

Technic Beam 3 x ...

Part #: 32526 4× Blue

Technic Beam 3 x ...

Part #: 32526 10× Black

Technic Pin Conne...

Part #: 32557 4× Light Bluish Gray

Technic Pin Conne...

Part #: 32557 5× Black

Plate 1 x 8

Part #: 3460 2× Black

Plate 1 x 6

Part #: 3666 1× Light Bluish Gray

Technic Pin witho...

Part #: 3673 6× Light Bluish Gray

Technic Axle 4

Part #: 3705 2× Red

Technic Axle 6

Part #: 3706 6× Black

Plate 1 x 4

Part #: 3710 2× Black

Technic Bush

Part #: 3713 13× Light Bluish Gray

Technic Pin Long ...

Part #: 39888 2× Tan

Technic Beam 1 x ...

Part #: 40490 5× Dark Bluish Gray

Technic Beam 1 x ...

Part #: 41239 12× Black

Technic Beam 1 x ...

Part #: 41677 12× Black

Technic Axle and ...

Part #: 41678 6× Black

Technic Axle and ...

Part #: 42003 19× Black

Technic Driving R...

Part #: 42195 2× Black

Technic Panel Car...

Part #: 42531pr0001 1× Blue

Technic Panel Car...

Part #: 42531pr0002 1× Blue

Technic Pin 1/2 w...

Part #: 4274 30× Blue

Technic Pin Long ...

Part #: 42924 68× Blue

Technic Axle Pin ...

Part #: 43093 17× Blue

Technic Beam 1 x ...

Part #: 43857 12× Black

Technic Axle 7

Part #: 44294 5× Yellow

Tyre 43.2 x 22 ZR

Part #: 44309 2× Black

Technic Pin Conne...

Part #: 44809 4× Light Bluish Gray

Technic Pin Conne...

Part #: 44874 3× Light Bluish Gray

Technic Pin Conne...

Part #: 44874 2× Black

Technic Axle 3

Part #: 4519 6× Yellow

Technic Tooth 1 x...

Part #: 48267 2× Blue

Panel 1 x 2 x 1 [...

Part #: 4865b 8× Black

Brick Sloped 30° ...

Part #: 54200 4× Trans-Clear

Technic Axle 8 wi...

Part #: 55013 1× Dark Bluish Gray

Wheel 30.4 x 20 w...

Part #: 56145 2× Black

Wheel 30 x 14

Part #: 56904 2× Black

Technic Axle Conn...

Part #: 59443 4× Dark Bluish Gray

Technic Beam 1 x ...

Part #: 60483 7× Dark Bluish Gray

Technic Beam 3 x ...

Part #: 60484 1× Black

Technic Axle 9

Part #: 60485 3× Light Bluish Gray

Technic Pin Conne...

Part #: 62462 2× Light Bluish Gray

Technic Axle and ...

Part #: 63869 2× Light Bluish Gray

Technic Axle and ...

Part #: 63869 3× Black

Technic Panel Fai...

Part #: 64393 1× Blue

Technic Panel Fai...

Part #: 64681 1× Blue

Technic Axle and ...

Part #: 6536 19× Black

Technic Brick 1 x...

Part #: 6541 2× Black

Technic Pin Conne...

Part #: 65487 2× Blue

Technic Pin Conne...

Part #: 65487 27× Black

Technic Pin Conne...

Part #: 65489 2× Light Bluish Gray

Technic Pin Conne...

Part #: 65746 2× Black

Technic Axle 3 wi...

Part #: 6587 2× Dark Tan

Part #: 6632 4× Black

Tile 1 x 6 with G...

Part #: 6636 2× Black

Technic Panel Fai...

Part #: 71682 2× Blue

Technic Panel Fai...

Part #: 71682 2× Black

Sticker Sheet for...

Part #: 72203 1× [No Color/Any Color]

Hose Rigid 3mm D....

Part #: 75c09 1× Black

Technic Panel Fai...

Part #: 87080 1× Blue

Technic Panel Fai...

Part #: 87080 1× Black

Technic Axle 4 wi...

Part #: 87083 5× Dark Bluish Gray

Technic Panel Fai...

Part #: 87086 1× Black

Technic Panel Fai...

Part #: 87086 1× Blue

Technic Gear Rack...

Part #: 87761 1× Black

Brick Curved 2 x ...

Part #: 88930 1× Light Bluish Gray

The set includes a good selection of Technic pins and connectors, useful for MOC builders looking to create their own functional models. The variety of black Technic beams also provides a solid base for structural elements.

🛒 Where to Buy

eBay

Search listings

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💎 Notable Parts

Blue Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot (68x) $3.40

Black Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Square Holes] (27x) $2.70

Black Technic Beam 1 x 13 Thick (12x) $1.80

Est. BrickLink Part Value

$7.90

💡 MOC Potential

🚗 Alternate race car designs

🚗 Custom supercar models

🚗 Off-road vehicle modifications

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 10 videos

3.0 /5

Mixed

0% positive

BlockTalk AI

YouTube reviews of the LEGO Technic McLaren Senna GTR (42123) are generally neutral, focusing on unboxing, building, and reviewing the set's features. RacingBrick provides an early, detailed building review, while others like Unbrickme highlight the set's phenomenal look, appealing to McLaren fans.

LEGO Technic 42123 McLaren Senna GTR detailed building review

RacingBrick • 272.7K views Review

LEGO Technic McLaren Senna GTR 42123 Reviewed!

Unbrickme • 55.9K views Review

LEGO Technic McLaren Senna GTR Car 42123 Unboxing - ASMR

RelaxingEdy • 14.7K views Unboxing

Community Sentiment

Based on 10 YouTube reviews

Not enough Reddit data

YouTube

3.0 /5

Mixed

0% positive

Positive

Mixed

Critical

BlockTalk AI Analysis

What the Community Says

6 YouTube reviews

BlockTalk AI Summary

Many reviews, including those by Jake's Bricks and Josh Builds Stuff, aim to determine if the set is worth purchasing, often providing build and review content. Channels such as RelaxingEdy offer ASMR unboxing experiences, and SimonRTV market datas showcases a speed build, emphasizing the set's authentic features inspired by the McLaren Senna GTR.