Forecast Model

This represents the expected annual growth (CAGR) based on a forecast model only.
LEGO 42123 McLaren Senna GTR is a 830 piece Technic set released in 2021. While the MSRP is $49.99, the current average price on the secondary markets is around $47. The set is estimated to retire sometime within mid 2023. Once retired, the expected annual growth will be close to 4% after the second year, which will value the set between $56 and $58 shortly after it is retired.
Retirement risk Retirement risk. McLaren Senna GTR has a current lifespan of 22 months, based on the average lifespan of other sets in this theme, which is 19 months, this set is at risk for retiring in the coming months.

For Sale (New/Sealed)

This chart shows the sales listing trends of 42123 McLaren Senna GTR.
(US) 42123 Technic McLaren Senna GTR Toy Building Kit, 830 Pcs
BrickEconomy Choice
$39.00
(US) Technic McLaren Senna GTR 42123 Model Building Kit (830 Pieces)
$39.00
-22.0%
(US) Technic McLaren Senna GTR 42123 Toy Car Model Building Kit New
$39.94
-20.1%
(US) Technic McLaren Senna GTR 42123
$39.99
-20.0%
(US) NEW LEGO 42123 Technic McLaren Senna GTR Toy Car Model Building Kit 830 Pieces
$39.99
-20.0%
(US) Technic McLaren Senna GTR 42123 Toy Car Model Building Kit *SEALED*
$39.99
-20.0%
(US) NEW Lego Technic McLaren Senna GTR (Building set #42123)
$39.99
-20.0%
(US) Technic McLaren Senna GTR 42123 Model Building Kit (830 Pieces)
$40.00
-20.0%
(NL) BrickLink store Namraah's-brick-store
$42.65
-14.7%
(US) Technic McLaren Senna GTR 42123 Toy Car Model Building Kit; Build and Di...
$42.95
-14.1%
(US) TECHNIC McLaren Senna GTR 42123 - Brand New in Sealed Box!
$42.99
-14.0%
(NO) BrickLink store BrickShop Norway
$43.26
-13.5%
(US) Technic McLaren Senna GTR Complete Kit, 830pcs Free Ship- Sealed
$44.73
-10.5%
(US) Technic McLaren Senna GTR 42123 Model Building Kit (830 Pieces)
$44.88
-10.2%
(US) 42123 Technic McLaren Senna GTR Toy Car Model Building Kit New (830 Pieces)
$44.99
-10.0%
(US) NEW! Lego Technic McLaren Senna GTR 42123 Toy Car Model Building Kit 2021
$44.99
-10.0%
(US) McLaren Senna GTR 42123 Building Set (830 Pieces)
$45.00
-10.0%
(US) Technic McLaren Senna (42123)
$45.00
-10.0%
(US) NEW IN BOX LEGO Technic 42123 McLaren Senna GTR Model Building Kit 830 Pieces
$45.95
-8.1%
(US) Technic McLaren Senna GTR 42123 Toy Car Model Building Kit New (830 Pieces)
$46.99
-6.0%
(US) Technic 42123 McLaren Senna GTR 830 Piece Block Building Set for Teens
$46.99
-6.0%
Show 50 more listings

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Annual growth 3.4%
Looking for the ultimate gift for a child or teen who loves supercar toys? This LEGO® Technic™ McLaren Senna GTR™ (42123) is a great choice – and adult McLaren fans will love it too! Packed with authentic features inspired by the original track-focused supercar icon, this collectible model toy is sure to set pulses racing.

The McLaren Senna GTR is a car unlike any other. And this awesome LEGO Technic toy version is equally impressive. Check out the V8 engine with moving pistons, iconic dihedral doors that open, plus authentic graphics and colors, just like on the real car. Steer using the wheel, then put the model on display where it’s sure to draw many admiring glances.
Description provided by LEGO©