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LEGO Technic: McLaren Senna GTR (42123) - Complete - box front
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  • LEGO Technic: McLaren Senna GTR (42123) - Complete - box front
  • LEGO Technic: McLaren Senna GTR (42123) - Complete - built set
  • LEGO Technic: McLaren Senna GTR (42123) - Complete - minifigures
  • LEGO Technic: McLaren Senna GTR (42123) - Complete - set details
  • LEGO Technic: McLaren Senna GTR (42123) - Complete - alternate view
  • LEGO Technic: McLaren Senna GTR (42123) - Complete - close-up
  • LEGO Technic: McLaren Senna GTR (42123) - Complete - rear view
  • LEGO Technic: McLaren Senna GTR (42123) - Complete - play features
LEGO Technic: McLaren Senna GTR (42123) - Complete
RestoredReleased 2021

LEGO Technic · 42123 McLaren Senna GTR

£15.99
Sold

Sold — this one's gone

Last sold at £15.99

Most of our sets are one-offs, but some do come back. Leave your email and we'll tell you if this one does — or we can try to source one for you.

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Want it sooner, or in a different condition? We source from collectors, auctions and marketplaces, and we'll email you if we find one at a fair price.

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Set facts

LEGO set 42123 (Technic) — used — restored, complete, released 2021. Currently sold out at Hadley Bricks (last sold at £15.99).

Set number
42123
Theme
Technic
Released
2021
Condition
Used — restored, complete
Delivery
Royal Mail Tracked, UK
Description & condition notes
Restored & Verified
Complete

Set Number: 42123

Set Name: McLaren Senna GTR

Year: 2021

Condition: Used

Box: See Photos

Instructions: Available Online


Description:

  • 830 pieces
  • V8 engine with moving pistons
  • Dihedral doors that open
  • Steering function via top wheel
  • Authentic McLaren graphics and colours
  • Dimensions: 32cm long, 12cm wide, 9cm high
  • Ages 10+
  • Retired set (2021)

Items are shipped within 2 working days, often sooner.

Used Lego sets are checked for completeness prior to listing and listed as complete unless described in the listing - we build and inventory check all sets. If we've missed anything, tell us and we'll send the piece free.

Used Lego may show signs of playwear, marks and slight discolouration, particularly with some of the vintage sets we sell. Refer to the condition description for anything explicitly called out. Broken or missing pieces are replaced as part of the sorting process.

Used Lego sets are sent dismantled unless otherwise stated. Please check listing carefully to see whether box and instructions are included - where instructions are not included we can provide a link to online instructions if available.

Our cheapest price guaranteed — at least 10% off our listings on other platforms.

Questions, answered

Is this set complete?

Yes. Complete — every piece checked against the official inventory. If anything turns out to be missing, tell us and we'll put it right.

What does "restored" mean?

We clean and sort the pieces, build the set and check it against LEGO's own inventory, then describe its condition honestly. It arrives dismantled unless stated, ready to build.

When will it arrive?

We usually dispatch within 1–2 working days by Royal Mail Tracked. Delivery is free over £50 and £3.99 below that.

Can I return it?

Yes. You have 14 days from delivery to change your mind, under UK consumer law. If it isn't as described, I'll refund you and pay the return postage. Read the returns policy.

Why is it cheaper here than on eBay or Amazon?

Buying direct cuts out the marketplace fees, so we pass the saving on: our prices here are always at least 10% below our own eBay and Amazon listings.

More Technic sets in stock

See all LEGO Technic Sets →

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