Lego® Technic 42172 McLaren P1

Current best price

LEGO 42172 is currently available from £283.99 incl. shipping at Amazon.co.uk. 27% below RRP (£389.99). 2 retailers compared.

Updated 2 November 2026 at 00:07

Lego 42172 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 McLaren P1 with the set number 42172 is part of the LEGO Technic theme and is recommended for ages 18+. That makes it a set mainly for adults. It was released in August 2024. The model has 3,893 pieces, and we estimate it takes around 9 - 11 hours to build. 362 Brickfact users have this set in their collection.
The set weighs about 7.371 kg. The box measures 52.2 x 37.8 x 23 cm. The recommended retail price is £389.99.
Our Brickfact Lego price comparison compares the prices of 2 shops for this set. It is currently cheapest at Amazon.co.uk for £283.99 including shipping. That is £0.07 per piece. With this offer you save £106.00 off the recommended retail price, a discount of 27%.
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 £521.82. You save around £237.83 if you buy the complete set at Amazon.co.uk instead of the individual parts on bricklink.com. The current best offer therefore has a POV rate of 1.84: the Part-Out-Value divided by the current best price on Brickfact.

Lego 42172 product data

Set Information

Set ID
42172
Theme
Pieces
3893
Building Time
9 - 11 hours
Age Range
18+

Availability

Release
08/2024
Retiring Status
Begin of Life (12/2027)

Price Information

RRP
£389.99
Insiders Points (for purchase at Lego)
3120
Part Out Value
£521.82
i

Packaging

Weight
7.371 kg
EAN (GTIN13)
5702017595672

Lego 42172 price history: how has the price changed?

Brickfact has been recording retailer prices since 12/10/2026. Best price so far: £389.99 (21 days ago).

Cheapest current offer in the comparison: Amazon.co.uk at £283.99. Amazon offers are not part of the price history.

Current best price
£500.00 +28% vs. RRP
Best price since 12/10/2026
£389.99 21 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 12/10/2026)

Since 12/10/2026, Lego.co.uk was the cheapest on 14 of 21 recorded days.

RetailerCurrentLowest priceDate
Lego.co.uk–£389.9925/10/26
Hamleys.co.uk–£389.9915/10/26
eBay LogoeBay£500.00£500.0001/11/26

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.

Popularity with Brickfact users

users have this set
362
buyers in the last 12 months
151

362 Brickfact users have McLaren P1 in their collection. 151 users bought it in the last 12 months.

Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of 1 November 2026.

Lego 42172 market value

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

Current market value
£263.27
Market value vs. RRP
−32.5 % £389.99
Range
£239.68 – £279.08
Average
£262.96

Loading price history…

Official Set Description for LEGO 42172 McLaren P1

Ignite your love for supercars with this engaging LEGO® Technic McLaren P1™ hypercar set for adults. Become immersed in the details as you construct the impressive 1:8 scale model. Then take your time exploring features like the 7-speed gearbox with its shifter drum, the suspension and the V8 piston engine. Admire the adjustable rear wing and the opening doors with their butterfly-style mechanism, before proudly displaying your completed model. Like the real-world car, the LEGO Technic version features its own unique serial number, which gives you access to exclusive online content.

From the fun unboxing experience to adding the finishing details, this LEGO Technic set offers a rewarding challenge for adult building fans. It’s an ideal present for supercar enthusiasts and McLaren fans, offering a project to enjoy and a display piece to cherish.

  • LEGO® Technic racing car set for adults – This McLaren P1™ building set for adults is packed with authentic details and can be built to make a 1:8 scale model collectible for supercar fans
  • Build the V8 piston engine and more – Enjoy a mindful project assembling all the details like the 7-speed gearbox with shifter drum, opening doors, adjustable rear wing and V8 piston engine
  • A 1:8 scale model car to display – From the unboxing experience to the building project, this adult building kit delivers a rewarding challenge for LEGO® Technic fans
  • Unique serial number tile – Like the real-world car, the LEGO® Technic version features its own unique serial number, giving you access to exclusive online content
  • A gift for car-lovers – This set makes a gift for adult LEGO® builders, supercar enthusiasts and McLaren fans, offering a creative project and a display piece to cherish
  • 3D building instructions – Get ready to build like never before with the LEGO® Builder app, where you can save sets, track your progress, zoom in and rotate your model in 3D
  • Measurements – 3,893-piece set with a model car measuring over 14 cm (5.5 in.) high, 59 cm (23 in.) long and 25 cm (9.5 in.) wide

Building Instruction for LEGO 42172 McLaren P1

LEGO 42172 Frequently Asked Questions

How much does LEGO 42172 McLaren P1 cost?
The lowest price in the Brickfact price comparison is currently £283.99 incl. shipping at Amazon.co.uk. That is 27% below the RRP of £389.99.
Where can I buy LEGO 42172 cheapest?
Brickfact compares 2 retailers. The cheapest offers: Amazon.co.uk (£283.99), eBay (£500.00).
Is LEGO 42172 still available?
Yes. LEGO 42172 McLaren P1 is currently available at 2 retailers in our price comparison.
When was LEGO 42172 cheapest?
Since tracking began on 12/10/2026, the lowest shop price recorded by Brickfact for LEGO 42172 was £389.99 on 12/10/2026 at Lego.co.uk, including shipping. Amazon prices are not included.

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