---
product_id: 278692957
title: "Technic McLaren Senna GTR™ 42123 Toy Car Model Building Kit; Build and Display an Authentic McLaren Supercar"
brand: "lego"
price: "$157.72"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/278692957-technic-mclaren-senna-gtr-42123-toy-car-model-building-kit
store_origin: US
region: United States of America
---

# signature dihedral doors open up & out functional V8 engine with moving pistons 830-piece precision build Technic McLaren Senna GTR™ 42123 Toy Car Model Building Kit; Build and Display an Authentic McLaren Supercar

**Brand:** lego
**Price:** $157.72
**Availability:** ✅ In Stock

## Summary

> 🏁 Build the legend. Own the thrill.

## Quick Answers

- **What is this?** Technic McLaren Senna GTR™ 42123 Toy Car Model Building Kit; Build and Display an Authentic McLaren Supercar by lego
- **How much does it cost?** $157.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/278692957-technic-mclaren-senna-gtr-42123-toy-car-model-building-kit)

## Best For

- lego enthusiasts

## Why This Product

- Trusted lego brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Iconic Design:** Dihedral doors that open like the legendary supercar’s signature style
- • **STEM Powerhouse:** Boosts creative thinking, problem-solving, and hand-eye coordination
- • **Dynamic Mechanics:** Experience real V8 engine pistons in motion for ultimate realism
- • **Race-Ready Engineering:** Authentic McLaren Senna GTR replica with intricate mechanical details
- • **Display-Worthy Masterpiece:** A stunning collectible that commands attention on any shelf or desk

## Overview

The Technic McLaren Senna GTR™ 42123 is an 830-piece LEGO model kit that faithfully recreates the iconic McLaren supercar with functional V8 pistons and signature dihedral doors. Designed for ages 10+, it combines advanced engineering with creative STEM learning, making it a must-have collectible for racing enthusiasts and builders alike.

## Description

Technic McLaren Senna GTR™ 42123 Toy Car Model Building Kit; Build and Display an Authentic McLaren Supercar

## Features

- Plastic
- Features McLaren Senna toy racing car, a true racetrack icon's authentic replica and LEGO Technic version of McLaren’s show-stopping supercar
- Ultimate speed. Supreme power. Breathtaking good looks. This collectable McLaren toy car features eye-catching graphics, colours & details
- Check out the detailed V8 engine with moving pistons and dihedral doors that open ‘up and out' in the unmistakable style of the real McLaren
- Build all the realistic features and beautiful design details, then display your car to attract admiring glances from everyone who passes
- LEGO Technic model car building kits feature realistic movement and mechanisms that introduce young builders to the universe of engineering.This LEGO toy sports car building set is an impressive Christmas gift for 10 + years old or a racing cars lover of any age

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 980 Grams |
| Item Dimensions | 2.78 x 15.04 x 10.31 inches |
| Number of Pieces | 830 |
| Theme | Robots & STEM |
| Subject Character | McLaren Senna |
| Color | Multicolor |
| Manufacturer Minimum Age (MONTHS) | 120.0 |
| Special Features | The LEGO® Technic model kit "McLaren Senna GTR |
| Educational Objective | Divergent Thinking, Hand-Eye Coordination, Creative Thinking, Problem Solving Skills |
| Material Type | Plastic |

## Images

![Technic McLaren Senna GTR™ 42123 Toy Car Model Building Kit; Build and Display an Authentic McLaren Supercar - Image 1](https://m.media-amazon.com/images/I/91KTROpdgXS.jpg)

## Frequently Bought Together

- LEGO® Technic McLaren Senna GTR™ 42123 Toy Car Model Building Kit; Build and Display an Authentic McLaren Supercar
- LEGO Technic Bugatti Bolide Racing Car Building Set - Model and Race Engineering Toy for Back to School, Collectible Sports Car Construction Kit for Boys, Girls, and Teen Builders Ages 9+, 42151

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**Shop now:** [https://www.desertcart.us/products/278692957-technic-mclaren-senna-gtr-42123-toy-car-model-building-kit](https://www.desertcart.us/products/278692957-technic-mclaren-senna-gtr-42123-toy-car-model-building-kit)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-28*