LEGO SET 42212 - Alternate build | Ferrari FXX K

LEGO Set 42212-1 – Ferrari FXX K: Top Alternate Builds You Can Make

When a Technic set lands with sleek bodywork, clever paneling, and a rich assortment of suspension, steering, and transmission parts, it practically begs to be rebuilt into track-ready machines. LEGO Technic 42212-1 Ferrari FXX K delivers exactly that: a donor packed with liftarms, gears, axles, and aerodynamic elements that translate beautifully into agile single-seaters and concept racers. Alternate (B-model) designers jumped on it immediately, reimagining the parts into compact Formula racers with tight proportions, working functions, and striking Ferrari-inspired silhouettes.

What makes these alternates especially appealing is how well the color blocking, flex elements, and curved panels from the FXX K convert to open-wheel geometry—nose cones, sidepods, halos, rear diffusers, even tidy engine covers. The builds below lean into those strengths: low ride heights, quick-swap wings, detailed cockpits, and tidy drivetrains. And because they’re alternates, you won’t need to source extra inventories; you’re repurposing the pieces already in the box. That’s fantastic value for builders who love to explore multiple display-worthy models from a single purchase, and it’s a great way to learn Technic mechanisms in bite-size form—manual steering linkages, fake engines, and even compact gearboxes.

F1 SF-24 (B-Model LEGO 42212 FXX K) 

Designer: Lukas2020. Built only from the parts of 42212-1. 
Get the instructions: F1 SF-24 by Lukas2020. 

42212 F1 F.S. Concept 

Designer: M_longer. Built only from the parts of 42212-1. 
Get the instructions: 42212 F1 F.S. Concept by M_longer. 

SF25 F1 – LEGO Technic 42212 FXXK Alternate Build 

Designer: WW Bricks Studio. Built only from the parts of 42212-1. 
Get the instructions: SF25 F1 by WW Bricks Studio.