Koenigsegg One:1

The One:1 takes its name from achieving a rare feat: one horsepower for every kilogram of the car’s weight, making it one of the most extreme megacars ever built by the small Swedish manufacturer. This set captures its low, wide, almost alien silhouette, full of vents and channels unlike anything from the more established supercar makers.

Koenigsegg’s design philosophy favors radical, unconventional solutions over convention, and we’ve kept the model’s surfacing sharp and angular to reflect the One:1’s aggressive, purpose-built stance, with prominent side intakes feeding the mid-mounted engine.

Every GTblocks set is engineered from official building instructions and genuine, third-party compatible bricks, panel-gapped and finished to a standard that holds up on a shelf or in a display case. The dihedral synchro-helix doors and prominent rear wing are built as accurate, distinct details that set this model apart from more conventional supercar shapes. Expect the kind of parts-count and engineering integrity that makes the build itself as satisfying as the finished model.

GTblocks exists for one reason: to turn iconic cars into brick models that actually look right on a shelf. Every set ships from our own warehouse with GTblocks packaging, a numbered instruction booklet, and the same 29,90€ price across the whole range — no hidden fees, no import surprises.