42123

LEGO Technic set 42123, “McLaren Senna GTR”, represents a track-focused McLaren interpreted through the mechanical building style of Technic. Released in 2021, it belongs to the Technic theme and contains 830 pieces, with no minifigures.

The model is based on the McLaren Senna GTR, bringing a licensed motorsport subject into the Technic range. Its low profile, angular bodywork and rear wing define the car’s visual identity. Within Technic, it sits among licensed vehicles where structural building, recognisable shaping and mechanical details are central to the design.

The build uses 830 Technic elements for the frame, body panels and visible exterior details. The available data lists no minifigures and no named characters. Known features of the model include working steering, opening doors and an engine with moving pistons, all built with the axles, connectors and panels typical of Technic construction.

This set is suited to builders who want a licensed McLaren model for careful play or display. In a Technic collection, it can be placed alongside other performance cars as a circuit-oriented interpretation, identified by the Senna GTR subject and by its emphasis on visible mechanisms.