Technic

McLaren P1™

42172
3893 pieces
Retiring Next year
BUYING ADVICE
✅Good deal
27% OFF
A solid 27% discount. This is a good deal based on this set's typical pricing. It has been as low as £242.24 (38% off), so the current deal is good but not the best we've seen. Price just dropped from £389.98.

retail price

£389.99

 

best price

£283.99

-£106.00

Lowest ever: £242.24 at John Lewis (5 Jun 2026)

This set is 27% off - watch it to get notified of even bigger drops

About LEGO McLaren P1™

This 3,893-piece LEGO Technic set builds a detailed 1:8 scale McLaren P1 model measuring 59 cm long, 25 cm wide and 14 cm high. The build focuses on authentic supercar details and mechanical features that mirror the real vehicle.

Advanced Engineering Features

The model includes a working V8 piston engine with moving pistons and a 7-speed gearbox with shifter drum. Other functional elements include opening doors, an adjustable rear wing, and detailed suspension components. These working mechanisms provide an engaging building experience that demonstrates real automotive engineering principles.

Collector Details

Like the actual McLaren P1, this model features a unique serial number tile that provides access to exclusive online content. The substantial piece count and precision engineering make this a display-worthy collectible for automotive enthusiasts.

The set is designed for adult builders and offers a challenging construction project suitable for experienced LEGO Technic fans. The finished model serves as both a technical achievement and an impressive display piece showcasing McLaren's iconic hybrid supercar design.

Where to Buy LEGO McLaren P1™ for the Best Price

We've been tracking prices for this set since November 2025. The recommended retail price is £389.99. It's currently available from 13 retailers, with Amazon offering the best price at £283.99, which is 27% below RRP. The lowest price we've ever recorded was £242.24 at John Lewis in June 2026, 38% off RRP. Over its tracked history, prices have ranged from £242.24 to £449.99. This set is expected to retire next year, so prices may increase as availability decreases.

Set Details

Set Number
42172
Pieces
3,893
Theme
Technic
RRP
£389.99
Best Price
£283.99
Price per Piece
0.07p
Browse all Technic sets →

Price History

Weekly view

Additional Images

Price History

Robert Dyas
06/11/2026
£371.99
Very
06/11/2026
£331.49
John Lewis
06/11/2026
£283.99
Magic Madhouse
05/11/2026
£322.87
Argos
31/10/2026
£390.00
Selfridges
31/10/2026
£390.00
Amazon
29/10/2026
£283.99
Currys
29/10/2026
£283.99
LEGO
21/10/2026
£389.99
ASDA
28/09/2026
£389.98
Smyths Toys
26/09/2026
£289.99
Chaos Cards
06/08/2026
£369.95
Game
13/07/2026
£319.00